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Foundation Mastic (Trowel Grade) A trowel consistency asphalt mastic waterproofing sealant for cement, block, concrete or brick, foundations. it will form a barrier against hydrostatic water pressure and provides protection against the erosion effects of running water. Once cured, it forms a tough durable protective membrane for vertical concrete, masonry, cement block, and brick foundations.
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🇺🇸 Ship from USA · On Agora since 2026
$59.00