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West System 422 Barrier Coat Additive™
Blended by West System to improve the already excellent moisture barrier effectiveness of West System Epoxy.
The 422 Barrier Coat Additive™ also increases abrasion resistance and this combination makes it an excellent additive to use below the waterline as a very effective protection against osmosis and gelcoat blistering. West System 422 is ideal for use in the final stage of osmosis repair work.
West System recommend 5-6 coats for an effective moisture barrier. Add 20-25% (by weight) of Barrier Coat to to mixed epoxy.
Available in 500 g for smaller areas and 3 kg suitable for larger jobs.
See the West System Gelcoat Blisters manual available in the Downloads tab for further information.
