HD24 Pre Grind is a gelled acid concrete etching product that removes contaminants and top laitance and leaves a 100-80 sand paper grit profile.
- Use as a pre-grind for polished concrete floors and when an aggressive opening is needed
- Increases slip resistance
- Generates no silica dust or noise pollution and contains no VOCs
- Neutralizes with water and is flushable to sewers
- 1- and 5-gal. containers with 300 to 350 sq. ft. coverage per gal. on smooth surfaces
- 24% acid