STPE: Moisture Cure Waterproofing
Single-component, fire-rated waterproofing that bonds to damp or green concrete, and moist surfaces in humid conditions, delivering lasting adhesion and protection across multiple substrates.
STPE: Moisture Cure Waterproofing
Green Concrete & Damp Surface Protective Coating
Hulk STPE® is a single-component, liquid-applied waterproofing and roofing system built on silyl-terminated polyether (STPE) technology. Fire-resistant and moisture-cured, it protects commercial and residential structures made of concrete, masonry, mortar, metal, roofing substrates and ICF foam. With Class “A” fire performance, high elongation, and the ability to cure even on damp or green concrete, it seals out air and water while moving with the structure. Fast-curing and rain-safe within minutes, it ensures reliable protection in even the toughest conditions. Uses for STPE include: Roofing, roof decking, bridges, plazas, deck slabs, and in water-treatment applications.
20 min
Heavy rain safe
0+ mils
In single lift
>0 psi
To concrete & Steel
It Ain’t Coming Off
Hulk STPE® is more than a waterproofing layer—it’s an adhesive-based coating with exceptional, lasting grip across a wide array of substrates. By chemically bonding to the surface, it delivers powerful adhesion that resists peeling or delamination, even under shifting loads or constant moisture. This adhesive strength provides structural confidence along with waterproofing performance. Adhesion-driven, built to seal and stay.
Let's Get Started
HULK Systems wants to save the industry time.
We know how many evening and weekend hours can go into calculating materials for future jobs, affecting the bottom line. Use our calculator to quickly produce quantity estimates for any and all applications.
Job calculators
