Description
💼 Seal smart, build strong — the pro’s choice for airtight confidence.
- ALL WEATHER APPLICATION - Apply confidently in rain or on damp surfaces—FastFlash cures and bonds even in wet conditions.
- UNIVERSAL BONDING POWER - Adheres instantly to OSB, plywood, metal, concrete, vinyl, and more—no primer needed.
- SEAMLESS WEATHERPROOFING - Create flawless, durable seals around rough openings and penetrations without flashing tapes.
- LONG LASTING UV RESISTANCE - Expose up to 12 months without yellowing, shrinking, or staining—maintain pristine protection.
- INTEGRATED SYSTEM COMPATIBILITY - Works perfectly solo or with PROSOCO Joint & Seam Filler and AirDam for airtight, watertight performance.
PROSOCO FastFlash is a fluid-applied flashing membrane that delivers a durable, waterproof, and airtight seal around rough openings, joints, and penetrations. Trusted by professionals, it bonds to a wide range of building materials without priming, cures in wet weather, and withstands UV exposure for up to 12 months without degradation. Ideal for seamless, weather-tight construction detailing.