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Specification

Product Data
ColourGrey
FormatPowder
Compatible With
Compatible WithEpoxyYes
Compatible WithPolyesterYes
Compatible WithVinylesterYes
Compatible WithPolyurethaneYes
General Properties
Gross Weight1.065kg

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Aluminium Trihydroxide Filler Powder

Aluminium trihydroxide (also known as ATH) is a low-cost, inert, odourless filler powder than can be used to bulk-out, reduce shrinkage, add weight and add fire retardancy to casting resins including polyurethane, epoxy and polyester.

Available to buy online in 1kg, 5kg, 10kg and 25kg packs.


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AVAILABILITY:More than 10 availablefor immediate shipping


PRICE
£4.74inc. VAT
(£4.74 /KG)
More than 10 availablefor immediate shipping
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Aluminium trihydroxide is an inert, odourless filler powder than can be used to reduce shrinkage and add weight to cast polymer products. It can also improve the fire resistant properties of the casting and reduce exothermic reaction.

Typical Uses

It is recommended that the powder is mixed thoroughly with Part 'A' of polyurethane casting resins (like our Fast Cast) before adding part B. Never count the weight of the filler powder in the mix ratio.

Aluminium trihydroxide 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.

Our Aluminium Trihydroxide Filler Powder is compatible with all popular casting resins, including polyurethane, epoxy and polyester.

How to Buy

Our Aluminium Trihydroxide Filler Powder is sold by weight and is available in 1kg, 5kg, 10kg and 25kg bulk pack sizes. Please choose the pack size you require from the drop-down menu at the top of the page.

Please contact us if you would like to discuss larger quantities.

Aluminium trihydroxide is an inert, odourless filler powder than can be used to reduce shrinkage and add weight to cast polymer products. It can also improve the fire resistant properties of the casting and reduce exothermic reaction.

Typical Uses

It is recommended that the powder is mixed thoroughly with Part 'A' of polyurethane casting resins (like our Fast Cast) before adding part B. Never count the weight of the filler powder in the mix ratio.

Aluminium trihydroxide 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.

Our Aluminium Trihydroxide Filler Powder is compatible with all popular casting resins, including polyurethane, epoxy and polyester.

How to Buy

Our Aluminium Trihydroxide Filler Powder is sold by weight and is available in 1kg, 5kg, 10kg and 25kg bulk pack sizes. Please choose the pack size you require from the drop-down menu at the top of the page.

Please contact us if you would like to discuss larger quantities.

Downloads (1)

Safety Datasheet (SDS)30 KB

Specification

Product Data
ColourGrey
FormatPowder
Compatible With
Compatible WithEpoxyYes
Compatible WithPolyesterYes
Compatible WithVinylesterYes
Compatible WithPolyurethaneYes
General Properties
Gross Weight1.065kg
Can’t find the answer you’re looking for?Ask our technical team a question.

Aluminium Trihydroxide is also known as Aluminium Trihydrate, so yes they are the same material but with slightly different names.

Yes, reasonably white. As you add more powder to a clear resin, then it will become more opaque until it becomes a uniform off-white colour. It's important to note that it would not be a brilliant white, if that was what you were looking for. In that case you would need to use a white pigment.

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Shipping Information

This product is safe for all forms of transport. No restrictions apply.

Simply add the item to your basket and then use the Shipping Calculator on the basket page to find the shipping price for this (and any other items).

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