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20 x Prosoco FastFlash Liquid Flashing Membrane, 20oz Sausage
1 x Albion B12S20 20oz B-Line Manual Sausage Gun w/ 12:1 Drive
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Prosoco Prosoco
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Product Details

Prosoco FastFlash Liquid Flashing Membrane, 20oz Sausage

PROSOCO R-Guard® FastFlash® is a waterproofing, adhesive and detailing compound for air barrier applications that combines the best characteristics of silicone and polyurethane. This single-component, Silyl-Terminated-Polymer (STP) is easy to gun, spread-and-tool, or roller apply to produce a highly durable, seamless, elastomeric flashing membrane. Allows for same-day installation of windows, doors and other wall assemblies, waterproofing or air barrier components.

Suitable for all climates, FastFlash® bonds directly to damp or dry surfaces and cures under a variety of weather conditions. It dramatically reduces surface preparation time by eliminating the need for reinforcing tapes at sheathing joints, inside and outside corners. It simplifies the process of producing watertight details in new or existing construction.

Use FastFlash® as part of a continuous, building-wide air barrier system, or to complement conventional waterproofing or air barrier components. Use FastFlash® to adhere, transition and counter-flash R-Guard SS ThruWall or other through-wall sheet flashing.


  • Streamlines preparation by eliminating the need for joint reinforcing tapes.
  • Silane functional polymer provides superior long term adhesion, crack bridging and weathering characteristics.
  • Easy 12–15 wet mil application.
  • Bonds to most common building materials without priming.
  • Single component saves time.
  • Produces a durable, weather-tight seal.
  • Bonds and cures in wet weather, on damp substrates, and tolerates rain immediately after application.
  • Will not tear or lose effectiveness when exposed to weather during construction.
  • May be fully exposed to UV and weather for up to 12 months depending upon conditions. If longer, contact for inspection.
  • Compatible with most sealants and waterproofing or air barrier components.
  • Solvent free. Isocyanate free. Phthalate-free.
  • No shrinkage. No staining. No yellowing.
  • Breathable – allows damp surface to dry.
  • Will not support mold growth.

Item #:PRS-70400-SAUSAGE
Brand: Prosoco
Length (in):2.00
Width (in):2.00
Height (in):13.00
Weight (lbs):2.00
Product Type: Polymer
Color: Red
Container Size: 20oz
Container Style: Sausage
Case Qty.: 20

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