RainBuster 425 Flexible Flashing Corners

425 RainBuster 425 simplifies the sealing of difficult to flash corners, such as those in recessed window openings, sill pans pot shelves, parapets, columns, and short/pony walls. Its use eliminates the need for poorly performing makeshift corners fashioned by folding peel & stick flashings.



Rainbuster 425

Rainbuster 425

RainBuster 425 Flashing Corners integrated into window sill pans and recessed condition pot shelves.

  RainBuster 425 is formulated with flexible polymers and constructed with 4” leg dimensions. It is available in both "A" Outside Corners and "B" Inside Corners for use in both single and multi-turn configurations.

Features and Benefits:

  • Innovative Building Science
  • Dramatically Reduces Incidence of Leaks in High Risk Areas
  • Eliminates Complex Folding of Membrane
  • Clear Color for Easy Inspection
  • Easy Staple On Installation

RainBuster 425 is part of the RainBuster LEAK-FREE window installation system. This system combines sealant, flashing, and procedures to provide the ultimate in leak prevention. The system is backed by an industry leading thirty year parts and labor warranty.

View RainBuster 425 Datasheet

Learn More about the RainBuster Leak-Free Window Installation System

View RainBuster LEAK-FREE Window Installation System Procedures

RainBuster 425 SDS 060115.pdf


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