
Flexible non-cementitious joint compound for sheathing joints and transitions.
AkroFill is a non-cementitious, ready-mixed, flexible joint compound manufactured with high-grade fiber fillers and 100% acrylic polymers. When reinforced with AkroFlex Starter Mesh, AkroFill is used to treat joints, corners, rough openings, and other transitions within the AkroGuard Water-Resistive Air Barrier Assembly.