Aluminium Trihydrate can be added to casting resins at an approximate maximum percentage of 200% by weight (e.g. 200g of filler powder to 100g of resin). Doing so will reduce shrinkage, improve thermal stability considerably and result in a heavier more substantial feel to cast products however the resin will become harder to pour and reproduction of fine surface details will be impaired as the filler content is increased. Never count the weight of the filler powder in the mix ratio.
Our Aluminium Trihydrate Filler Powder is compatible with all popular casting resins, including polyurethane, epoxy and polyester.
Notice: Images are for illustration purposes only, please check product size at the time of purchase.
