​Air / Water-Resistive Barriers & Flashing

Finestop RA

Finestop RA

A one-component fluid-applied vapor permeable air/water-resistive barrier. Waterproof and resilient, it may be spray-, roller-, trowel-, or brush-applied directly to approved wall substrates.

MaxFlash™

MaxFlash™

A one-component elastomeric material for use as a flexible flashing membrane. It can also be used to prepare sheathing joints for subsequent application of BASF air/water-resistive barrier membranes.

Finestop RS

Finestop RS

A vapor permeable air/water-resistive barrier membrane optimized for airless spray application. Waterproof and resilient, it may be spray-, roller-, trowel-, or brush-applied directly to approved wall substrates.

WS Block Filler

WS Block Filler

A one-component, water-based block filler based on Silica Fortified Rubber™ chemistry. WS BLOCK FILLER is specifically designed for use with BASF air/water-resistive barrier products.

Finestop VB

Finestop VB

A one-component fluid-applied vapor impermeable air/water-resistive barrier. Waterproof and resilient, it may be spray-, roller-, trowel-, or brush-applied directly to approved wall substrates.