SLEDGE HAMMER is a “mineral acid” alternative specifically formulated to dissolve built up concrete on tools and equipment used in the ready-mix concrete industry. It attacks the Portland in concrete, completely dissolving the hardened concrete to a mushy substance that can be rinsed off with a high pressure washer using cold water. This highly concentrated formulation is compounded to maintain sufficient acidity to dissolve harder concrete without the use of mineral acids including sulfuric, muriatic, hydrochloric or phosphoric acids. It removes cured cement, concrete, mortar, grout and stucco off any surface. (Painted surfaces should be fully cured.)
*1 Gallon covers approximately 250-300 square feet.
- 100% biodegradable
- No odors or fumes
- Nonhazardous to equipment
- Cement Trucks
- Slip-Form Pavers
- Rakes and Shovels
Directions for Use
IMPORTANT: Never wet surface before applying!
Completely saturate the area of hardened concrete to be removed with undiluted product using a sprayer or conventional brushing. The surface will turn white upon contact with the product, then darken. Allow it to remain on cement for at least 20 minutes. Treated cement can be left to react overnight. If allowed to evaporate, white residue will appear-DO NOT RINSE. Reapply product to reactivate as needed until concrete is softened to mush. Heavy buildup may require additional applications.
Rinse with cold water via a high-pressure washer (1,000-3,000 psi).
Always wear protective clothing (rubber gloves, eye shield). Do not clean with any type product when temperatures are below freezing or when surface has been exposed to extreme heat from direct sun. Best results are obtained when cleaning is done with temperature is between 40°F – 80°F. (Hot surface temperature may cause scorching)