205 Fast Hardener is a medium-viscosity epoxy curing agent. It is used in a majority of bonding situations, at lower temperatures, and to produce a rapid cure that develops its physical properties quickly at room temperature. When mixed with WEST SYSTEM 105 Resin in a five-part resin to one-part hardener ratio, the cured resin/hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties. 205 Fast Hardener is not intended for clear coating.
It is indeed fast. The trick is to plan ahead and don’t be shy - get it out of the pot and spread out to limit runaway exothermic reaction
WEST SYSTEM FAST HADENER 205 1G
Work like its supposed to thought it would work faster but it still takes a day before you can really sand or work it
WEST SYSTEM EPOXY 205 FAST HARDENER QT
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