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WR Grace Vycor+ 25 mil x 4" x 75' Flashing

Brand: WR Grace Mfg#: 21483
Product#: 457VP475
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Provides superior protection against water, air and moisture infiltration in window and door openings, corner boards, under stucco finishes, masonry walls and other flashing areas. It is designed to work in severe winter climates, milder climates, and in


  • Highly conformable and flexible - Can accommodate settlement and shrinkage movement
  • Long-lasting waterproofing protection - Both the polyethylene film and the specially-formulated rubberized asphalt components create a water and moisture barrier that does not degrade from the effects of the environment
  • Superior adhesion capabilities - the membrane creates a strong bond to the substrate for long-lasting waterproofing protection
  • Forms water-tight laps - Grace Vycor Plus superior adhesion properties ensure strong laps, even in seams in the flashing
  • Measurement markings - the membrane surface is clearly marked at every 6 in (150 mm) and 12 in (300 mm) intervals to facilitate the installation procedure
  • Ripcord - With the sophistication of construction practices it becomes a must to follow the proper sequencing principles. Ripcord offers the flexibility to install half the membrane before and the other half after the other building envelope components are installed, i.e. house wrap or felt. Only in this way are the proper installation principles followed
  • Seals around fasteners - the specially formulated rubberized asphalt adhesive seals around fasteners, allowing no water to penetrate and get to the substrate
  • Proven track record - Grace Vycor Plus employs the same proven technology as our Grace Ice &Water shield - the market leader in self-adhered underlayments for over 30 years
  • Easy to work with - membrane installation is fast and easy - simply remove the release paper and press onto the substrate. with grace vycor plus contractors can flash more windows with better quality


  • Brand: WR Grace
  • Product Line: Vycor+
  • Color: Gray/Black
  • Specific Gravity: 1 - 1.1
  • Thickness: 25 mil
  • Temperature Rating: 25 deg F
  • Material: HDPE
  • Standards: ICBO Approved
  • Type: Self-Adhering
  • Length: 75 ft
  • Width: 4 in
  • Special Features: Paper Release Liner