Searched for "material"

Raw Moulding Materials

July 10, 2018
The polyethylene used in National Poly Industries’ products are sourced from Australian natural gas that is processed and compounded to include colour, UV inhibitors and other additives. Polyethylene is classified as a safe material by the National Occupational Health and Safety Committee. The poly pellets used in the manufacturing process are considered to be environmentally […]
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Why Weight Determines Value and Strength in Poly Tanks

June 15, 2018
In a previous article, we saw how the raw materials of a tank often differ in quality despite being named the same general material, for example, different grades of steel and poly mixes. This is one identifiable factor in higher and lesser quality tanks. What determines the value and strength of poly tanks though? This article aims […]
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Water Supply Requirements for Fire Fighting in Queensland Bushfire Prone Areas

June 15, 2018
  Queensland is notorious for its bushfires with the fire season typically being between August and January. In the 2002 to 2003 fire season, 2800 bushfires scorched 8 million hectares. At the end of December 2013, hundreds of campers and visitors lapping up the sun on North Stradbroke Island had to be evacuated due to bushfires. Queensland […]
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Verifying Australian Tank Standards Compliance

June 15, 2018
Many rainwater tank suppliers often state their poly tank materials comply with the AS/NZS 4766 (“Polyethylene Storage Tanks for Water and Chemicals”). If a company claims their poly tanks are certified to the AS/NZS 4766, this does not guarantee that yours will be. This is because it is actually left up to the manufacturer to ensure quality […]
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Using Settling Tanks to Improve Your Water Quality

June 15, 2018
When harvesting rainwater from your roof, a dam or river, or an underground bore, it is possible to increase the water quality through utilising two or more tanks. This article will examine settling tank systems – what they are and the benefits they can provide to the quality of water stored in your tank. What is a Settling […]
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Poly Tanks vs Steel Tanks – Strength and Durability Compared

June 15, 2018
In terms of durability, there is a belief circulated around that all poly water tanks will become brittle and break down in the Sun. After all, polymer is a plastic and we have all seen how plastic objects decompose and become powdery over time. This is similar to saying all steel will corrode in the […]
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Rotathene® SUPA UV Poly Tanks: Stress Testing Rainwater Tanks in Extreme Environments

June 15, 2018
Rotathene® SUPA UV Rotathene® SUPA UV provides superior protection for rotomoulded products by incorporating advanced additive technology. Traditionally a UV8 level of stabilisation has been considered the minimum required for good long term protection in Australia. This is the level specified in the Australian Tanks Standard, AS/NZS4766:2006. As seen in our article, Testing Poly Tank UV […]
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Steel vs Concrete vs Fibreglass vs Poly Tanks

June 15, 2018
Which Water Tank Material is Best? Rainwater tanks come in a lot of different sizes, shapes and materials. This article covers some advantages and disadvantages of the most commonly used materials in rainwater tanks. Decide for yourself which type of water tank best suits your needs. Fibreglass Water Tanks Fibreglass tanks need a food-grade coating to be […]
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Rotathene® SUPA UV – Making Tanks Built to Last

June 15, 2018
What is SUPA UV? Rotathene® provides a much higher level of protection against the Sun than the required industry standard for poly tanks. It is referred to as “SUPA UV” for this reason. Rotathene® SUPA UV provides superior protection for rotomoulded products by incorporating advanced additive technology to last 4.5 times more than the Australian […]
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Rainwater Assessment for BASIX Certification in NSW

June 15, 2018
Rainwater is arguably the best source of alternative water for achieving your BASIX (Building Sustainability Index) water target. It is recognised by the NSW government as being an important source of water sustainability. When lodging your assessment application online, BASIX will assess your rainwater based on the four following areas: Roof Catchment Area You will need to […]
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Is it Safe to Drink Rainwater from Water Tanks?

June 15, 2018
No one wants to drink water that could potentially harm them or their family. So it is quite understandable then that a commonly asked question is whether it truly is safe to drink rainwater stored in your water tank. According to the NSW government’s BASIX website, rainwater stored in a tank is usable for flushing toilets, […]
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How to Maintain Drinking Water Quality in Your Rainwater Tank

June 15, 2018
This article is a summary guide on how you can maintain safe and fresh tasting rainwater compiled from the advice of Australian federal and state governments. Rainwater from your roof is a valuable resource and safe to drink when stored in a safe, properly installed and maintained rainwater tank. If you will be using your […]
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How to Clean Sludge Out of a Rainwater Tank

June 15, 2018
As part of proper tank maintenance procedures, it is often advised that tanks be inspected inside for sediment build-up at least every two years. This article examines tank sludge, how it gets in your tank and more importantly how you can clean it out should you find it in the bottom of your tank. What […]
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How to Choose Your Water Tank Colour

June 14, 2018
When choosing your rainwater tank, there are a number of things to consider. The more obvious things are what water tank material you should go for, and what size water tank do you need. Most choose food-grade poly rainwater tanks due to their strength, light weight and reasonable price. An advantage to poly tanks is […]
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Australian Standards for Poly Water Tanks and Installations

June 14, 2018
When looking to buy a rainwater tank you’ve probably heard “Australian Standard (AS)”this, “Australian/New Zealand Standard (AS/NZ)” that with an “International Standard (ISO)” mentioned also – but what do they all mean? Standards compliance provides you with some assurance that the product or service you are buying is safe, reliable and of good quality. You might think that Australian […]
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How Australian Standards Apply to Poly Water Tanks and Installations

June 14, 2018
There are a number of Australian Standards that you should be aware of when shopping for a new poly rainwater tank: AS 2070 Plastics materials for food contact use AS/NZS 3500 Plumbing and drainage AS 3688 Water supply – Metallic fittings and end connectors AS/NZS 4020 Testing of products for use in contact with drinking water AS/NZS 4130 […]
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Collecting Safe and Drinkable Rainwater from Your Rooftop

June 14, 2018
Rainwater is a valuable resource and safe to drink as long as proper steps are taken to ensure the different components in your rainwater harvesting system are safe and installed correctly. This includes the materials your tank is made from and how it is plumbed into your house. Another important component to your water quality is the catchment area that […]
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Proper Water Tank Maintenance for Drinkable Rainwater

June 14, 2018
  Rainwater from your roof is a valuable resource and safe to drink when stored in a properly installed and maintained food-grade rainwater tank. NSW Health stresses the importance of a properly maintained rainwater tank for good quality drinking water. In urban areas, they recommend mains water because often people either do not know how to maintain their […]
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Plumbing in Your Rainwater Tank for Safe Drinking Water

June 14, 2018
  When it comes to having fresh-tasting rainwater many consider the safety of the water storage materials without much thought to actual plumbing in of their tank. To make certain your water remains of a high quality you need to be on top of your tank fittings, connections and pipes. Safe Tank Fittings and Piping Ensuring safe […]
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Choosing a Safe Water Tank for Drinkable Rainwater

June 14, 2018
Rainwater is one the highest quality sources for drinking water if collected and stored properly. So the type of material used to manufacture your water storage tank makes a big difference to the water quality you will experience. Water Tank Materials Water tanks can be constructed from a wide range of materials including polyethylene (plastic), […]
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Benefits of Harvesting Rainwater in Water Tanks

June 14, 2018
  Water is a precious resource that covers 71% of Earth’s surface. It moves continually through the water cycle of becoming a vapour through evaporation and transpiration, transforming into water through to condensation in the Earth’s atmosphere, and then once condensed into water falling back to earth via rain (precipitation). Rainwater is a pure form of […]

Australian Standards

June 14, 2018
AS 2070-1999 Plastics Material for Food Contact Use The Australian Standard AS 2070 applies to the manufacture of the plastics materials (resins, granules and powders) and colorants for food contact use and describes procedures to be followed during the various stages of processing by manufacturers of plastics items for food contact. Adherence to this standard […]

ZINCALUME Steel Tanks

June 14, 2018
There are two types of ZINCALUME® steel. If you must get a rainwater tank in this material, then ensure you get the most recent generation. “Next Generation” ZINCALUME® steel (AM125) launched in August 2013 and lasts longer than older ZINCALUME® steel (AZ150). Both are normally used in roofing, but can be found in steel tanks. […]

Polyethylene Tanks

June 14, 2018
Polyethylene is one of the most popular water tank materials today for many good reasons. Some main benefits include: poly tanks are strong, light-weight and more cost effective than alternative materials the flexibility of plastic allows for variety of styles and shapes poly tanks are easier to install due to their strength and lightness a […]

Fibreglass Tanks

June 14, 2018
Fibreglass tanks are quite rare today, but require a food-grade coating to be up to Australian standards for storing drinkable water. Tanks made of fibreglass are often very stiff and rigid, but relatively thin and light making them quite brittle and prone to cracking. They also allow more light entry and often found in darker […]
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Water Supply Requirements for Fire Fighting in NSW Bushfire Prone Areas

June 14, 2018
Australia is a semi-arid country with hot, dry summers. As such, rural areas are particularly prone to bushfires — rural New South Wales is no exception. Homeowners, particularly those living in rural areas, need to consider this when planning and building their homes. In rural bushfire areas, an adequate water retention system for firefighting purposes […]
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Water Supply Requirements for Fire Fighting in Victorian Bushfire Prone Areas

June 14, 2018
Victoria has a sub-Mediterranean climate, and like the rest of Australia, experiences hot dry summers where bushfires are common and often devastating. Victoria is considered one of the highest bushfire risk areas in the world; the 2009 Black Saturday bushfires, which claimed 173 lives, and destroyed more than 2000 homes and 430,000 hectares of land, […]
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Testing Poly Tank Sun Protection: Rotathene SUPA UV Polyethylene

June 14, 2018
What is SUPA UV? Rotathene® provides a much higher level of protection against the Sun than the required industry standard for poly tanks. It is referred to as “SUPA UV” for this reason. Traditionally a UV8 level of stabilisation has been considered the minimum required for good long term protection in Australia. This is the […]

Custom Design Specifications

May 30, 2018
National Poly Industries’ specialised knowledge and diverse experience with the custom design and manufacture of poly tanks and parts is extensive. Many different industries benefit from our depth of expertise in specially constructing poly products – the marine industry with specially engineered products for search and rescue applications, water treatment plants with industrial tanks requiring […]

Industrial Tanks

May 30, 2018
We can supply you with a wide range of industrial tanks from 1,000L up to 37,200L that are customisable with a variety of fittings. NPI Industrial is a manufacturer with the expertise to promptly evaluate your needs and deliver the right solution? Our experience comes from over 20 years delivering polymer products for industrial applications. […]

Terms and Conditions of Sale

May 28, 2018
Terms of Sale Print Version1. DEFINITIONS AND INTERPRETATION 1.1 Definitions In these terms and conditions, unless the context otherwise requires: “Application” in relation to a Buyer means the Credit Account Application signed by the Buyer which refers to these terms and conditions. “Consequential Loss” means, in connection with a breach of these terms and conditions […]

Mould Fabrication (Tooling)

May 28, 2018
There are many advantages that rotomoulding provides including a superior product and the potential to manufacture very large items. Another benefit are the costs associated with fabricating moulds, which can be remarkably inexpensive. Known as tooling, moulds can be cast, machined or fabricated by hand. They are usually made from materials that are good conductors […]

Rotomoulding Process

May 28, 2018
Before the rotomoulding process begins there are several preparation steps. Product design – you need to know what you are making, the grade of plastic material required and design techniques necessary to achieve a successful product. Create the mould – also knowing as tooling, moulds typically constructed from aluminium or steel that transmit heat. Setup […]

Rotational Moulding

May 28, 2018
Choose National Poly Industries for your once off projects or ongoing project rotomoulding work. Design Your Own Product Do you have poly product that you need made? Consult with us to optimise your design, fabricate moulds and bring it to life. Find out more Rotomoulding Process Rotational moulding is a process that involves heating a […]

Design Your Own Product

May 25, 2018
National Poly Industries work with external and in house designers and have state of the art rotomoulding equipment with a wide range of capabilities. If you have a poly product that you need then consult with us to help design and bring it to life. Project Rotomoulding Products from large to small can be made […]

National Poly Benefits

May 24, 2018
Working with National Poly Industries provides you the benefit of dealing direct with a manufacturer who is both established and professional. Our expertise, in-depth experience and success comes from over 100 years of combined knowledge and state of the art manufacturing facility. All products are designed to the highest standards and to meet your requirements whether for household, […]

Why Poly Water Tanks?

May 23, 2018
The most popular type of water tank on the Australian market today are poly water tanks made from durable, UV-protected, food-grade polyethylene (a very lightweight, strong and safe plastic material). Rainwater tanks are fabricated from a range of materials. Some common tank materials include plastics, galvanised steel, concrete, stainless steel, fiberglass or a combination. Some of these […]

AS/NZS 4766:2006 & ISO 9001:2008 Certification

May 23, 2018
National Poly Industries is one of only a few tank manufacturers that are certified to both the Australian Tank Standard AS/NZS 4766:2006 and ISO 9001:2008. This provides you with an additional guarantee that you are dealing with a manufacturer with an absolute commitment to quality. Your Tank Quality Assurance As an ISO 9001 certified manufacturer, […]

Privacy Policy

May 23, 2018
How we collect personal information We collect personal information in a number of ways, including: directly from you, such as when you request a quote or order products and services from us, or when you provide information by phone from publicly available sources of information when legally required to do so. How we use your […]