One-Part Pourable Sealer is a black, single component, moisture curing, elastomeric polyether sealant that is compatible with Versico’s EPDM membranes. The material is designed to provide a flexible, durable and long lasting seal around hard-to-flash penetrations in VersiGard Roofing Systems. One-Part Pourable Sealer provides rapid skin time when exposed to atmospheric moisture forming a waterproof rubber surface in less than one (1) hour. Moisture curing continues, until a two (2) – inch deep solid rubber seal encases the penetration. Complete cure time will vary depending on relative humidity and temperature.