- Choosing the
- Contractors &
DUR-A-WALL HP BLOCK FILLER is high quality interior acrylic block filler formulated to fill small imperfections and pinholes in masonry block and porous concrete before top-coating. This 100% acrylic block filler is easy to apply, alkali resistant and provides a surface capable of receiving all types of finish coats. DUR-A-WALL HP BLOCK FILLER is not water sensitive after application.