PROSOCO FastFlash | Waterproof and Airtight Fluid-Applied Flashing Membrane - Trusted by Professionals

★★★★★ 4.5 22 reviews

$39.96
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$39.96
Price when purchased online
Free shipping Free 30-day returns

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Product details

Management number 218612887 Release Date 2026/05/03 List Price $15.98 Model Number 218612887
Category
  • To install windows, avoid the “origami” of building wrap and tapes – because if you don’t get it right, it will leak. This fluid-applied is the high-performance product used by professionals to get the job done right.
  • Use FastFlash independently or with compatible products PROSOCO Joint & Seam Filler or PROSOCO AirDam to prevent the unwanted movement of water and air through rough openings, joints, seams and penetrations. Produces a durable, weather-tight seal.
  • Bonds to most common building materials without priming, such as OSB, plywood, glass mat gypsum, magnesium oxide board (MgO), wood, galvanized steel, stainless steel, vinyl, polyvinyl chloride (PVC), concrete, masonry and anodized aluminum substrates.
  • Bonds and cures in wet weather, on damp substrates, and tolerates rain immediately after application. But, also breathable allowing damp surfaces to dry.
  • May be fully exposed to UV and weather for up to 12 months. No shrinkage. No staining. No yellowing.

UPC 653429020113 653429020168
Color Red
Model 70400-CASE
Volume 348 Fluid Ounces
Item Form Paste
Viscosity Viscous
Brand Name Prosoco
Unit Count 20.0 Fluid Ounces
Item Weight 1 Pounds
Part Number PRS-70400-SAUSAGE
Manufacturer PROSOCO
Material Type Plastic
Container Type Tube, Sausage
Item Type Name Fastflash
Number of Pieces 20
Compatible Material Alloy Steel
Item Package Quantity 1
Water Resistance Level Waterproof

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4.5 out of 5
★★★★★
22 ratings | 9 reviews
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