Berger Dampstop Duo Exterior is a powerful waterproofing primer designed to protect exterior walls from water seepage, dampness, and efflorescence. It strengthens the topcoat’s performance and extends the life of exterior surfaces.
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Dual-action formula – blocks dampness and primes the surface
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Excellent water resistance – protects walls from rain and seepage
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Prevents efflorescence – stops white salt deposits from forming
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Improves adhesion of exterior paints – enhances finish and durability
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Available in 1L, 4L, 10L, and 20L – ideal for small homes to large buildings
