Bostik Floor Hardener NM is a pre-blended, ready to use and dry shake formulation for hardening freshly placed horizontal concrete slabs and toppings. Floor Hardener NM produces a hard, dense, wear resistant surface which resists corrosion and absorption of grease, oils, alkalis and most chemicals. Typical areas of use include concrete floors in garages, steel mills, generating plants, loading platforms and wherever a heavy-duty wear resistant floor finish is required.