All posts by Rotational Plastics

Roading Plastics: Benefits of Plastic Road Barriers

Plastic offers some of the best alternatives to traditional products. One great example is “roading plastics”, such as plastic road barriers and pedestrian barriers, which solve most of the issues with their concrete or metal counterpart.

Road safety barriers serve many purposes. They help reduce traffic congestion in highways and increase safety on the road. And while traditional road barriers perform well, they are particularly problematic when it comes to ease of use and maintenance.

This is where plastic barriers enter. And here’s why here’s why it just makes sense.

Lightweight

Plastic road barriers are hollow, which is why they are much lighter in weight compared to metal and concrete ones. They are typically filled with water which can be conveniently drained though a drain plug at the bottom. Their lightweight property lends them portability, which reduces transportation costs by a huge fraction. Because they are light and easy to deploy, more units can be loaded in a vehicle and less manpower is required to install them. This eliminates the need to hire a forklift to move them between events or work sites.

Durability

Plastic road barriers are moulded into single block units, which mean there are no moving parts that may loosen up or break over time. There are no metal hinges that may rust, either. Each unit is designed to interlock to create a continuous wall or barricade without the use of pins or cables. Our roading plastics are made from high-quality polyethylene which is rotationally moulded to offer the best durability. They are moulded to a minimum thickness of 8mm so they don’t crack or break under normal use. These barriers can last over 40 years.

Versatility

The male/female ends of each barricade, which allow interlocking of multiple units, serve as a pivot point that allows a variety in the angles the barriers are set up. This allows your barricade to swing if impacted, instead of breaking or toppling.

And speaking of versatility, plastic road barriers can accommodate add-on features to suit various applications, including banners, warning signs, safety lights and signage for increased visibility.

Customisable

The beauty of polyethylene plastic is it comes in a wide array of attractive colours, which make them more visible from a distance. In roading applications, visibility is an essential factor for the effectiveness of safety barriers. During the manufacturing process, an ultraviolet light inhibitor is added to the plastic to keep the colours from fading even under constant exposure to sunlight.

Aside from colour, plastic barriers can also be moulded into any shape or size. So if you have specifications other than the standard, we can help you design and manufacture custom barriers suitable for your intended application. These can even be branded with your company name or logo for marketing purposes or simply to prevent theft in job sites.

Environment friendly

Not all plastic is bad for the environment. In fact, polyethylene is 100% recyclable. So when your plastic road barriers no longer serve their purpose, they can be reprocessed into something else and will not end up in landfills.

All these properties make plastic barriers an ideal option for crowd and traffic control in highways, construction zones, car parks, ports, sporting events, shows, pedestrian walkways and many other situations.

That being said, not all plastic road barriers are created equal. Precision and the quality of construction are important to ensuring your barrier of choice will withstand even the harshest conditions.

We, at Rotational Plastics, are confident about the superior quality of our products. We work hard to provide tailored solutions to all budgets and needs.

Food Grade Pallets In New Zealand

Food safety is a huge concern in the food and beverage industry. Any business in the sector must ensure their food is safe for the end consumer and prevent contamination at any stage in the supply chain. Even a small case of contamination can cost dearly and result to legal liabilities.

Plastic food pallets offer a hygienic solution for ensuring the safety of products during export, shipment or internal warehousing.

Plastic vs. Wood

Are plastic pallets superior to wood pallets? The answer is a resounding yes. The great debate has already been settled, the use of plastic pallets is already a growing trend in the F&B industry. Here are some of the reasons why:

  • Resistance to moisture. Food-grade plastic pallets are non-porous. This means there are no hidden reserves that will hold moisture or fluids that harbour moulds or pathogens (such as Salmonella, Listeria and coli). Since there are no fibres in the material, fluids from raw foods such as meat can easily be cleaned and sanitised between loads. The non-porous surface also ensures no harsh chemical residue from cleaning agents will build up and get in contact with the food.
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  • Does not require fumigation. Wood pallets often require fumigation or some sort of heat treatment to repel pests (such as the ambrosia beetle and the emerald ash borer) and fungus. Such treatments can make the pallets more susceptible to mould growth, and they sometimes use chemicals that are not considered food-safe. In fact, a well-documented case of Johnson & Johnson product recalls years ago was directly linked to chemical treatments applied to wood pallets, specifically, the toxic pesticide 2, 4, 6-tribomoanisole (TBA).
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  • Resistance to heat. Heat resistance is one of the inherent properties of our plastic pallets, which lend them superior durability. Even in high heat or humidity, the pallets are guaranteed to perform well without breaking or warping.
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  • Lightweight. Our pallets are designed to be hard at work yet easy to use. They provide the support and efficiency required in moving products through the supply chain, without adding to the bulk or weight. A standard 48” x 40” pallet can hold up to 2,800 pounds. As a result, using our food-grade plastic pallets can help lower your shipping costs by adding less weight to shipments and speeding up the delivery of goods.
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  • Long operational life. Moisture and fluids are bad news for wood pallets. Once the pallets get soaked, they become hard to clean and dry completely. Over time, they become brittle and prone to contamination. Plastic eliminates this problem, so they can be used over and over for a relatively longer operational life. Even better, old pallets can be recycled into other products. This reduces your operational expenses and waste.
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  • Keeps products in good condition. Splinters or protruding nails on wood pallets can bruise or puncture food products, making contamination more likely to occur. But this is never the case with plastic pallets. These pallets are made with high-quality plastic that is moulded to produce a solid block construction with no nails or screws necessary.
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  • Environmentally friendly. Although plastics generally have a bad rap, plastic pallets are particularly more eco-friendly compared to their wooden counterparts. They can be ground and re-used to make new pallets.

Rotational Plastics have a range of food-grade pallets that provide both sanitary performance and exceptional value. Our pallets come in various sizes, colours and configurations to suit all possible kinds of applications. For instance, some types have ribbing or lip edges for better stability of the products during transit.

Given the safety, cleanliness and reliability of plastic pallets, more and more food companies are transitioning to using them for their shipping and warehousing activities.

Plastic Pallets For Supply Chain Management

One of the biggest challenges for any form of business is optimising efficiency in the supply chain. It’s not enough to simply produce quality products if you can’t get them to the shelves in the best condition. Efficiency means safe handling and transporting items conveniently at an affordable cost.

If you’re still using wood pallets, it’s time to transition to their plastic counterpart. The benefits of using plastic pallets are just too good to ignore:

  • Lightweight. Weigh is a major concern during loading, offloading and shipping products. It adds extra costs and requires more effort to handle. Since plastic pallets are much lighter than wood pallets, they can help you save on shipping costs and make handling much more convenient.
  • Extremely durable. Wood pallets typically last for 3 to 5 years, but the lifespan of plastic pallets is up to 10 years. Moreover, plastic pallets can withstand shock and support more weight with minimal wear and tear. With proper use, they will neither break nor splinter. If you are operating a closed-loop system where you use the pallets over and over, plastic ones are best to use.
  • Safe to handle. Plastic pallets have no moveable parts because they are injection moulded or thermoformed into one single block construction. This means there is no risk of injuries from rusty nails, splinters, sharp edges or protruding fasteners. Knowing safety is guaranteed, your staff will handle products with confidence and efficiency.
  • Hygienic and easy to clean. Plastic pallets don’t absorb liquids or drippings from raw meat. Consequently, they do not attract pests or harbour moulds and harmful pathogens. All they need to be clean is a quick wash, which is why they are a perfect hygienic solution in the pharmaceutical and food and beverage industries. Our plastic pallets are specifically made from food-grade material to maintain hygiene at all times.
  • Dimensionally stable. This feature lends plastic pallets superior performance. When used for the recommended load capacity, the pallets will retain its original dimensions, i.e. width, length, height, block width, entry width and under clearance.
  • Weather resistant. Exposure to rain or high humidity won’t damage our UV-stable plastic pallets. Even corrosion, shock, stress and weak acids will not affect them. Thus, they are a must-have all-weather solution in the supply chain. They can also withstand low temperatures in freezers or chillers.
  • Branding. Need another platform for marketing your brand? Plastic pallets can be customised for any marketing purpose. You can stamp your brand on display pallets or choose a colour that identifies your business, to increase awareness. Moulding plastic pallets is a versatile process that offers unlimited possibilities. In addition to branding, the pallets can also be numbered or serial coded to make inventory more efficient.
  • Space saving. As well as weight, space is also a key variable in determining shipping costs. Plastic pallets can be stackable, rackable or nestable. This feature allows you to save space where possible, particularly during return trips.
  • Environmentally friendly. Consumers love brands that are environmentally conscious. By adopting plastic pallets, you’ll be marking yourself as an eco-friendly business. There are a number of reasons why. First, they save trees which are an important natural resource. Second, unlike their wooden counterpart, plastic pallets don’t need fumigation or heat treatment. Such treatments use toxic chemicals that make the pallets unsafe for food handling and contribute to environmental pollution. Third, plastic pallets are 100% recyclable. Old ones can be broken down and moulded into new ones.

Plastic pallet design

Versatility is one of key features of plastic pallets, as they can be moulded into unique designs to match the needs of a business.

Below are some of the most commonly used types:

  1. Stackable pallets – The bottom section of these pallets is designed such that multiple pallets can be stacked without comprising stability – with or without products.
  2. Rackable pallets – These are most dependable for managing heavy loads. They have either runner or picture frame configuration for enhanced strength. These pallets are designed to fit on racks seamlessly, which helps to save more space on the floor.
  3. Nestable pallets – Best to use if you need to maximise space. These pallets have “legs” that go into each other when stacked, allowing easy transport especially during the return trip.
  4. Drum pallets – Made specifically for transporting drums, these pallets have moulded recessed rings that may vary in size depending on the size of the container it’s used for. The recessed rings secure drums in place so they don’t slip or fall during shipping and storage.

Other features can be added to plastic pallets such as lip edges and spill control depending on applications. Speaking of such, plastic pallets may also be classified according to their use.

Below are some examples:

Product displays

You’ve probably seen this in supermarkets, groceries and retail stores. Plastic pallets can be branded and made in a range of colours or sizes to support promotional product displays. This allows an entire product display to be moved conveniently using a forklift.

Industrial export

Recycled plastic pallets are a cost-effective option for one-way shipping. Although they are not as durable as the ones made with 100% virgin polypropylene (PP) or low density polyethylene (LDPE) material, they are cheaper and nonetheless reliable.

Spill control

Plastic pallets used to transport liquid or beverage containers typically have slits or holes on the surface and a containment at the bottom for catching any leak or spillage. This way the leaks will not spill onto the floor or the shipping container, reducing the risk of slips and falls as well as the risk of contamination when transporting hazardous substances. Our range includes spill containment pallets from 50L splash pallets to 400L forklift-able pallets.

Plastic pallets can also be classified based on their capacity, i.e. heavy duty or medium duty. The heavy duty type is made using 100% virgin LDPE material, which makes them extremely durable for a long period of time. These are perfect for demanding applications such as in a closed-loop supply chain or in heavy industrial transport.

Reheating plastic makes the original material structurally weaker, which is why recycled plastic pallets are cheaper. Such as medium-duty pallets that are commonly used for internal warehousing purposes.

Whatever your business requires, you can get the best plastic pallets for the job from Rotational Plastics. We currently have 10 different pallet moulds including a couple of spill containment pallets. All out products are proudly manufacture in New Zealand using locally sourced materials.

Don’t see a product in our range that suits your needs? Contact us to discuss your requirements and the potential to custom design something for you.

Have You Experienced Flooding? You May Need A Detention Tank

If you are building a new home, there may be several requirements that you’ll need to meet. One of these requirements might be stormwater management, which will require the use of a detention tank. If you are experiencing flooding, a detention tank may also be your answer.

What are detention tanks?
Detention tanks are large tanks that are normally installed below the surface and used to suppress the effects of heavy rainfall, or stormwater. They work by temporarily storing the rainwater runoff during rainfall and slowly release the water through a small diameter orifice into the public storm water system. This reduces the peak flows of stormwater and reduced the chance of flooding due to an overloaded stormwater system.

Detention tanks are usually required in areas where storm water flooding risks are high. This is especially true in many areas in Auckland, with the current increase in population and housing. Generally speaking, if you are adding roof space by extending or building a new home in areas where stormwater systems have not been renewed, you will most likely require a detention tank.

Detention tanks can also be useful for managing stormwater onsite. This is most common used in combination with soak holes. This systems gives the ground enough time to soak excess water which prevents any surface or ground related flooding.

How big does my detention tank need to be?
In Auckland, a rule is based on several conditions such as the “storm of the 100 years” principle, which would be to allow for 100 liters per 1 square metre of roof surface area. Depending on detention requirement, the outlet orifice can range between 10mm-40mm. Some further information can be found regarding size of detention tank from Auckland Council here.

We at Rotational Plastics can help you get the detention tank you need for your home. See our large range of plastic detention tanks or call us on 0800 768 284 today!

If you are looking for a Drainlayer to install any of our tanks, please don’t hesitate to call Drainage NZ for a free quote.

Guide To Choosing Marine Storage Boxes

All boats have organization and built-in storage features. But in reality, no matter how big the boat, there never seems to be enough stowage options available. Every nook easily fills up with fishing gear, watersports equipment, boating accessories and random stuff brought on trips.

Additional storage is often required to de-clutter and optimise boat space. Here’s where marine storage boxes come in handy.  These versatile storage items will keep your stuff out of the elements but still within easy reach.

Marine storage boxes provide a safe and secure place for all of your boating essentials and tools. Since they are water-tight, they are especially useful for keeping manuals, reference cards, extra cash or your stash of sandpapers dry as well as easily accessible. These versatile boxes can also be used for keeping your catch of the day fresh or your party drinks cold, or for safekeeping small stuff that tend to get lost or broken. Of course, they will also keep your snacks, blankets, towels and gadgets dry even in extreme boating or weather conditions. You can also use these storage boxes as extra seats or step stools since they are built to hold a lot of weight and can endure knocks.

Now, not all marine storage boxes are built the same. So we’re giving you some tips on choosing the right on for your boat.

Material

Standard boat storage boxes are usually made of fiberglass, which makes them extremely strong and able to hold well even in severe conditions. There are a number of problems for this type though, and one is that these aren’t one-piece containers. They have seams where leaks could occur. Fiberglass is labour intensive to manufacture and requires a special barrier to prevent corrosion, which make it expensive.

Other marine storage boxes are made of polyethylene, which is a comparably strong but relatively cheaper material. withstThese are usually seamless one-piece containers that are far less likely to leak. The Tyson Handyman Storage Boxes, in particular, use a special kind of polyethylene which is UV stabilized to withstand UV degradation. This makes them weatherproof, which is perfect for marine applications. They have been tested to withstand knocks and impacts without breaking.

Both fiberglass and polyethylene storage boxes have a watertight seal as well as stainless steel latches and hinges for waterproofing.

Shape

Yes, boat storage boxes come in shapes other than the usual rectangle. There are triangular storage boxes for utilizing those odd nooks when space is really tight. Many say these are easier to install and more versatile. But if you need a good amount of secure storage, we recommend the regular shaped storage. Rectangle boxes butt up against each other nicely.

Size

The size totally depends on what you’re planning to stow.  There are definitely a wide range of options where size matters. Apart from size, boat storage boxes can have different configurations. Some have trays inside for easy organizing, double lids for easy access, inbuilt drinks holder or other features that make life onboard a breeze.

To learn more about your marine storage box options, see our range of marine storage boxes here or contact us on 0800 768 284.

Creative Uses For Plastic Bins

Plastic bins are excellent for storage, for moving or for sorting items, parts or pieces. But with a bit of creativity, plastic storage bins can be used for so much more. Here are some interesting and creative uses for storage bins we have come across:

Small Pond
Using a plastic container as a waterproof pool, this person made a small pond in their yard by digging a hole in the ground, placing the bin in it, filling it with water and decorating it with plants, tiles and decorative stones. We think this is quite clever and a creative, cost effective way to create
a feature in your garden.

Floating Drink Cooler
A great item for summer, this is one cool way to have your drinks in the sun. A floating drinks cooler, this plastic bin floats on the water by use of pool noodles tied around the edge, close at hand for when you need a refreshment. This is a simple and easy to make piece of equipment, and will make your time in the pool that much more enjoyable.

Pet House
If you need somewhere to house your furry friends, a plastic bin could do the trick. A bit of DIY to create openings, installation of a mesh and any other features you with to throw in, and you could have a cheap and fun home for your rabbits, mice, guinea pigs or other pet.

Cat Litter Boxes
Loose kitty litter is a common problem amongst cat owners and one that is solved by this great solution. By getting a plastic bin and cutting a large enough hole in the lid for your cat to climb in and out, you create a contained kitty litter box which will ensure all the litter stays inside. When it’s time to change the litter, you simple remove the lid, fill new litter and replace it.

Yarn Organiser
For all the knitters, sewers and craft lovers, this is a great solution to keeping your yarn in check. By poking a few small holes into the lid of your plastic bin, you will have a new yarn box which you can organise to suit your needs, be it color, style or any other way that suits. The yarn you need will always be ready and untangled

 

These are just some examples of how you can be creative with our plastic bins, there are many more undiscovered uses for them that we will leave up to you. Head over to our range on our website to get yours and let’s see what you can do with them!

Are You Flooding? Get A Detention Tank!

If you are living in an area that is constantly being developed or re-developed, chances are you deal with street floods whenever there’s a storm or heavy rainfall. The reason for this is that urban development increases “hard surface” which doesn’t absorb water, unlike soil and grass. Examples of hard surfaces are concrete paths, roofs and paved areas.

Intense rainfall dumps large amounts of water on your property. And since stormwater is no longer being absorbed into the land, there is increased run-off into local stormwater systems. As more dwellings are built, the public infrastructure becomes considerably undersized.

A good solution to ease the pressure on existing infrastructure is installing detention tanks. In fact, this is now a mandatory requirement for new homes as well as extensions. Having a detention tank plumbed into your existing drainage system is also encouraged as it makes stormwater run-off more manageable.

What is a detention tank?

A detention tank stores water collected from your hard surfaces during a rainfall event, then releases the water into the public drains at a slow, controlled rate. The slow release of the stormwater reduces peak stormwater flows and, in turn, reduces the impact on stormwater systems as well as the chance of flooding.

Detention tanks are different from rainwater retention tanks. A retention tank is a normal water tank which simply harvests rainwater and “retains” it for domestic use. Most retention tanks can only hold so much water. In case of intense rainfall, they can quickly fill up and the water overflows into the local drains in an uncontrolled manner.

On the other hand, a detention tank is intended to remain empty to make space for stormwater runoff during periods of rainfall.

It should also be noted that stormwater is different from rainwater.

Rainwater refers to rain that falls on roofs, while stormwater refers to rain that falls on hardstand surfaces other than roofs. The distinction lies in the quality of the water. Research has proven that although rainwater harvested from a roof may contain dust or debris, the debris is likely to be organic and the quality of the water makes it excellent for use in the household. Meanwhile, stormwater may have potential contaminants such as oil drops, pet droppings and rubbish.

Detention tanks may be installed above or underground.

Detention tank solutions

A detention tank is designed to empty the required amount of water at the required rate.

How big your detention tank should be depends on the specifications required by your local council. The council will also specify the size of the orifice and the flow rate of water from your detention tank. In most cases, a certain percentage of your roof or ground area will be specified for use in harvesting stormwater.

Aside from the specified size and capacity, these are the things to consider when selecting a detention tank for your property:

  • Space and budget considerations
  • Aesthetics
  • Ease of installation
  • Maintenance

If you need help choosing the right type of detention tank, contact us on 0800 768 284 and we’ll talk you through the specification and building process.

Mould Your Own Ideas

Do you have an idea that you think would make a great plastic product? Many people do but think that turning it into reality is unrealistic. However, this is far from the truth, and producing a product from an idea is not as hard as it may seem.

When it comes to custom rotational plastic moulding, no idea is too far fetched. Once you have an idea for an item or product, the technicalities will need to be worked out. How it will be constructed, the size and scale, will it be once piece or several etc. The mould for the item will also need to be made, so that it can be constructed.

If you are unsure of how realistic your design is, or are unsure of the technical aspecs of the design, we are able to work with you on the design to make it viable. There are certain conditions that need to be met, such as wall thicknesses, to ensure that the item will be strong enough, hold it’s shape and withstand the circumstances it’s to be used in.

Once we have all these points worked out, it’s time to make the product. This is where the equipment is set up to make your specific item, which includes the mould. Once the equipment has been set up, it is very easy and often much more economically efficient to make a large quantity of the item, since the setup has already been done.

Now the actual plastic moulding takes place. This usually consists of four main stages.

  1. A measured amount of polymer (plastic, usually in powder form) is loaded into the mould.
  2. The mould is then headted in an oven while rotating, which melts the polymer and adheres it to the walls of the mould. The mould is rotated through two or more axes and at different speeds to avoid an accumulation of polymer powder in one spot. The amount of time the mould is in the oven is critical, as too long and it can impact the strength of the product, due to the polymer degrading, and too little time in the oven means the polymer will not melt completely which can result in large bubbles in the polymer.
  3. Now the mould will be cooled, usually by use of a fan. This part can take some time, as it needs to cool enough so that the polymer solidifies and sets, and it’s cool enough to be handled safely by the operator. Upon cooling, the part will shrink and come away from the mould, making removal easy.
  4. Removal of the part from the mould.

At this point your product is a reality which you can see, hold, and use. The creation process is not as complex as it may seem, it just takes knowledge, experience and the right equipment to produce the results. If you have a product you would like to see realised, get in contact with us today to discuss your idea!

What Are Our Most Popular Products?

When you sell such a wide variety of products like we do at Rotational Plastics, naturally the question comes up. What is the most popular product in our range? We had a look at our statistics to see the answer.

It turns out that tanks are the most popular category of product on our website. People love our plastic tanks, whether for retention, storage or even spray water tanks. But why are tanks so popular?

Many people are looking to move off the grid, and water is one of the main utilities which you don’t have control over unless you collect your own. With a water tank, you can collect and store your own water. This is also an excellent option in more rural areas where mains water supply is not available.

What does our range of tanks include?

Above ground tanks – Above ground tanks are increasingly common across New Zealand because they are a cost effective way to collect and store water. The advantage of these tanks are that installation and maintenance is both cheap and easy, since the tank is easy to place and get to. There is no excavation needed. When maintenance is needed, which involves emptying and cleaning the inside, this is much easier with an above ground tank – simply hose down the inside and tilt the tank to drain the water.

Below ground/underground tanks – These tanks are installed either partially or completely under the soil, and are another popular option. However, they are a more permanent solution, as they require excavation to install them. The benefit is that they don’t take up any space above ground, so you still have a backyard to enjoy. They are most often installed during the building process of the home, minimising installation costs and inconvenience once the home is built. Underground tanks need to be reinforced in order to handle a long life underground.

Mobile home water tanks – These are the perfect solution if you need to storage water in your mobile home. Also good for boats, these plastic tanks won’t corrode and will ensure that your water stays clean and protected. These come in a range of shapes and sizes to suit a wide range of applications.

Spray water tanks – These are tanks with pressure washing systems. They come in a range of sizes and shapes and can be used for many applications.

Check out our website now for a wide range of plastic water tanks in all shapes and sizes!

All About Detention tanks

You maybe have been browsing our website and no doubt came across our detention tank range. There are tanks in all shapes and sizes. But what are these tanks actually for?

Detention tanks, which are sometimes called retention tanks (though this is incorrect), are generally used when storm water system in not adequate enough to deal with the job of extracting water. The detention tanks works to slow down the rain that comes off your roofs and goes into the stormwater system, to prevent overflowing. This is generally an issue in older areas where a lot of new houses are being built and a lot of strain is being put on the stormwater system. Where this is an issue, councils often require the use of detention tanks.

What happens if you have a retention tank is instead of the water flow straight into the stormwater, it comes off the roof and other areas and into the detention tank, then drains slowing through the orifice outlet into the stormwater system. The tank and orifice will be specified to drain at a certain rate, depending on what the stormwater can handle. This can take hours depending on the flow rate. The area your building is in will have specific requirements for this.

Detention tanks can be stand alone units, but often times there are combined with a retention tank. The retention tank stores water for when you need it, in contrast to the detention tank. So how this works will be if you use a 3000 litre tank, the bottom 2000 litres will be used to store your water, and the top 1000 litres for detention.

So what do you need to look for when buying a detention tank? The first thing you’ll need to look at are the council requirements in your area for water flow. You need a tank that will meet these requirements, which will determine the size your orifice you need to select. If you are going to going to be getting a combination retention tank, then you also need to take into account how much water you need for storage. You also have the choice of above ground or below ground.

We have a wide range of detention tanks on our website in all kinds of configurations, sizes and shapes. Have a look through our range and contact us if you need assistance selecting a tank for your home!