The HOLDRITE HydroFlame patented cast-in-place technology is unrivaled in the protection of lives, property and investment. HOLDRITE HydroFlame Sleeveing systems are an engineered, lab-tested and UL-rated solution for delivering the ultimate in cast-in-place water, smoke and fire-stop performance. HOLDRITE HydroFlame’s internal and external water seals offer double protection against water intrusion. Its patented mid-body seal allows for contraction and expansion of piping systems and the surrounding concrete floor slab while still protecting against the spread of water, smoke and gas. HOLDRITE HydroFlame helps keep lives and property safe from water, mold, fire, gas and smoke.