Mapei Mapefer 1K Na bag 10lb

Provide advanced, long-term electrochemical protection for exposed structural steel with MAPEI Mapefer 1K. This one-component, polymer-modified cementitious rebar coating is formulated with specialized corrosion inhibitors and high alkalinity to re-passivate reinforcing rods in concrete restoration projects. Engineered to meet or exceed the performance of traditional 3-component epoxies under ASTM B117 salt-spray standards, Mapefer 1K mixes simply with water and applies effortlessly via brush or spray. Its generous working time gives repair crews up to a 14-day window to place repair mortars without losing bonding capability. Featuring a distinctive bright blue finish for easy coverage inspection, any overspray onto surrounding concrete will not act as a bond breaker, ensuring maximum structural adhesion.

Key Features:

• Active Rebar Passivation: High-density, high-alkalinity cementitious formula prevents oxidation and repassivates reinforcing steel rods.

• ASTM B117 Salt-Spray Tested: Delivers equivalent or superior corrosion protection compared to complex three-component epoxy zinc systems.

• Extended 14-Day Open Window: Structural repair mortars can be applied over treated rebar up to 14 days after Mapefer 1K application.

• Non-Bond Breaker Overspray: Product brushed or oversprayed onto adjacent concrete surfaces will not compromise repair mortar adhesion.

• High-Visibility Blue Color: Vibrant blue pigment allows quick visual inspection to confirm complete 360-degree rebar coverage with zero missed spots.

• Single-Component Simplicity: Pre-packaged dry blend requires only clean water, eliminating jobsite measuring errors and volatile organic odors.

• Smooth Brush & Spray Application: Extended pot life and creamy consistency ensure uniform coating along ribbed steel profiles and wire ties.

• Specifications: Brand: MAPEI | Product: Mapefer 1K | Color: Blue | Mix: Clean Water | Test Standard: ASTM B117 | Application Window: Up to 14 Days