Contractors and serious DIYers, if you're still messing with peel-and-stick flashing tape, you're working harder, not smarter! PROSOCO FastFlash is that game-changing fluid-applied membrane that installs 34% faster than traditional methods and actually performs better. The magic is in the application - you just brush or roll this stuff on, and it forms a seamless, waterproof, airtight barrier that conforms to any shape or detail. Irregular transitions, complicated corners, weird penetrations - none of it matters because the liquid formula fills every gap perfectly. Here's the real kicker: you can apply this to damp surfaces and it'll rain immediately after application without compromising the seal. That means no more watching weather forecasts like a hawk and losing work days to unexpected showers. The stuff bonds to practically everything without primer - OSB, plywood, concrete, steel, PVC, you name it. It's been independently proven to perform for over 10+ years, which is why professionals trust it on high-performance buildings where failure isn't an option. The environmental specs are impressive too - VOC-compliant, solvent-free, isocyanate-free, and phthalate-free, so you're not breathing nasty chemicals all day. It can handle full UV exposure for up to 12 months without degrading, and there's no shrinkage, staining, or yellowing to worry about. Whether you're sealing rough openings, counter-flashing, or dealing with tricky joints and seams, FastFlash creates a durable, weather-tight seal that actually lasts. This isn't some untested new product - this is professional-grade material that's been proven on some of the most demanding construction projects out there.
Free 30-day returns 
Free 30-day returns
