Sikagard P 8100 AP – One-Component Zinc-Rich Epoxy Primer for Rebar (1 Quart Can)

Sikagard P 8100 AP (formerly MasterProtect P 8100 AP) is a one-component, zinc-rich epoxy primer specifically formulated to prime and protect reinforcing steel from corrosion. It is brushed directly onto properly prepared rebar to provide a durable, protective coating before placing repair mortars or concrete.

The high zinc content helps protect reinforcement through electrochemical action, while the epoxy chemistry offers excellent adhesion and compatibility with a wide range of cementitious repair materials. Sikagard P 8100 AP dries to touch quickly yet maintains a generous working time, making it easy for crews to fully coat exposed steel — including the backs and sides of bars — without rushing against a short pot life.

Benefits

• One-component, ready-to-use epoxy primer — requires only stirring prior to use
• Zinc-rich formulation for enhanced corrosion protection of reinforcing steel
• Dries to touch in minutes, with long working time for thorough coverage
• Compatible with all Sika repair mortars and most cementitious repair materials
• Brush-applied to fully exposed rebar, including backs and tight areas
• Suitable for interior or exterior use in both new construction and repair work

Applications

• Priming exposed reinforcing steel prior to concrete or mortar repair
• Corrosion mitigation in concrete repair projects where rebar has been exposed and cleaned
• Interior and exterior repair work on structural concrete elements
• Use with vertical, overhead, or horizontal repairs after proper steel preparation