403 filler: microfibres. Versatile thickening additive for bonding applications.
A cotton cellulose fiber blend for use in thickening an epoxy/hardener resin mixture to create a versatile adhesive.
The most common use is in wood bonding
Epoxy thickened with microfibers has good gap filling qualities but will still do an excellent job of wetting/penetrating into the wood fibers.
When mixed with epoxy, it takes on an off-white color.
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WEST SYSTEM's 403 Microfibers filler is used to thicken an epoxy/hardener resin mixture and create a versatile adhesive.
Its most common use is in wood bonding.
Epoxy thickened with microfibers has good gap filling qualities but will still do an excellent job of wetting/penetrating the wood fibers.
You can mix it with any combination of WEST SYSTEM 105 resin and WEST SYSTEM hardeners, G/flex 650 epoxy or G/5 Five-Minute adhesive.
When mixed with epoxy, it takes on an off-white color.
Add 4 to 16% by weight