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Astra Enviroslat is an extruded timber replacement product made from a mix of plastic (recycled and virgin) and reclaimed cellulose fibre (wood sawdust / rice husk). It was invented in the USA in the late 1980’s/early 1990’s and has been evolving ever since. Originally designed as a substitute for certain types of timber it is now produced and sold all over the world.
Astra Enviroslat can be classed as 100% recycled/reclaimed. Only the shell layer is made from virgin polymers. A small amount of colour pigment, UV inhibitor and other chemicals are added to the recycled products to ensure a highest-quality final product.
Enviroslat uses high grades of post-industrial recycled polyolefin (HDPE plastic) as well as virgin polymers, hardwood wood flour, rice husks, pigments, UV inhibitors and fungicides. In the harsh Australian environment, solid Enviroslat composite is preferred due to the low moisture absorption and superior profile strength / design.
Enviroslat has a fungicide added in the formula that helps to reduce the risk of mould growing within the material under normal conditions. Due to the ability of mould spores to be transported in the air it is important to keep the surface free of dirt and other contaminants to reduce the incidence of mould growth.
Breakdown of Material Content:
1. Reclaimed cellulose fibre (wood/bamboo/rice husk) = 55%
2. HDPE (post industrial waste) including plastic bottles but not limited to = 35%
3. Additives (virgin polymer shell, colour pigment, UV inhibitor, fungicide etc) = 10%
Features, Benefits & Advantages:
Weight per length 40x30 x 1800mm = 2.7kg
Ignitability : 14
Spread of flame : 2
Heat evolved : 3
Smoke developed : 4