IMPEPRIME™ SD is a fast-curing polyurethane primer developed for use with the IMPETHANE® waterproofing system. Designed to promote strong adhesion between the substrate and subsequent waterproofing layers, it helps create a reliable foundation for long-term membrane performance.

Its low-viscosity formulation provides excellent impregnation of concrete surfaces, allowing the primer to penetrate and prepare the substrate effectively before membrane application. With touch-dry times of approximately 1–2 hours, IMPEPRIME™ SD helps accelerate project timelines and supports same-day waterproofing applications where project conditions allow.

As the faster-curing alternative to IMPEPRIME™ ND, IMPEPRIME™ SD is particularly suited to projects where rapid turnaround and efficient waterproofing application are required.