Back-Set turns hard set cement back into soft rinsable mud!
Apply Back-Set with sprayer or soft brush (do not dilute or wet concrete prior to contact). Concrete will turn white upon contact, then grey. Allow to penetrate for 10-15 minutes. Re-apply and keep concrete wet with Back-Set until concrete begins to soften and pull away from cleaned surface. Rinse with water thoroughly, on extra thick build up repeat cleaning directions until build up is soft. Back-Set is safe on glass, aluminium, rubber, chrome and sealed concrete products.