Healthy, pure fresh rainwater is all you get with a Heritage Water Tanks ARMA Fresh Liner, which is 100% BPA free, with absolutely no chemical contaminants. Our ARMA Fresh liner has been certified to all Australian Standards relating to drinking water and meets the requirements outlined in the Australian Drinking Water Guidelines 2011.
Nothing but pure rainwater
Microbe resistant water tank liner
ARMA Fresh Liner is certified with AS/NZ4020 “Testing of products for use in contact with drinking water,” and meets all criteria to be certified as a food grade water tank liner in Australia.
The AS/NZ 4020 Standard requires that products that are compliant:
- do not affect the taste or appearance of water;
- do not support the growth of microorganisms; and
- do not release cytotoxic or mutagenic compounds or metals.
How are liners tested for microbial growth?
To be certified by this standard, the product is subjected to a range of rigorous tests. In a test that takes 8 weeks, products are examined for the ability to support bacterial growth by monitoring dissolved oxygen levels. Products are required to comply with all tests relevant for the product type, with respect to acceptable health requirements in Australia.
What makes our Tank Liner so strong?
Compared to our closest competitors, Heritage Water Tanks ARMA Liner has been independently tested and comes out on top in three critical areas. Shear Strength, Tear Strength and Density.
At Heritage Water Tanks, we never compromise on quality, which is why we provide high-quality industrial-grade liners for our tanks. Under independent testing conditions, our liners were rated on lineal weight or weight per square meter and were found to weigh 700g/m². This was of particular interest because our closest competitor’s liner weighed under 500g/m².
The high density of our liner makes it one of the heaviest liners in the Australian Domestic Water Tank Industry. Extra weight means extra density. This testing also identified our ARMA Liner as the best in relation to Shear Strength, Tear Strength and Puncture Resistance, compared to the Aqualiner and Infinity liners of our competitors at that time.
ARMA Fresh Liner Properties
> Arma Fresh Liner (700gsm)
Minimum tensile properties
> Tensile properties (ASTM D 7003)
> Maximum strength (kN/m) 52
> Break strength (N) 1312
> Puncture resistance (ASTM D 4833)
> Puncture strength (N) 1025
> Seam strength (ASTM D 6392)
> Shear strength (N/mm) 57
The Heritage Water Tanks ARMA Liner made up of six layers fused together with a reinforced layer to add extra strength.
During the manufacturing process, the liner is heated into a moult and spread evenly across a table under a roller, which adjusts the thickness and evenness of the liner. What makes the ARMA Liner unique is that once the moult has passed through the rollers and has started to cool, the spreader knife compresses the moult in the layer below. This is why our liner weighs up to 40% more than our closest competitors, but measures the same in thickness. The Heritage Water tanks ARMA Liner that we use for domestic water tank manufacturing is known as an industrial quality liner as a result of its density, which is 700 grams per square meter.