Epoxy primer-sealer for concrete parts is a two-component self-drying paint composed of epoxy resin, additives and solvents, and a special epoxy curing agent. It has hard paint film, high adhesion, good wear resistance and alkali resistance, and is widely used for sealing concrete surfaces and sealing cement components and structures.

Advantage of Epoxy Primer Sealer for Concrete Parts

Excellent permeability and water resistance

Excellent alkali resistance

Excellent adhesion to cement surface

Good thermal stability

Specification of Epoxy Primer Sealer for Concrete Parts

Type Solvent

Solid Content 50%

Mixing Ratio two components  base : hardener=6:1 by weight

Dry Film Thickness 20μm per coat

Specific Gravity 1.0kgs/Liter

Coverage Rate (Theoretical) 0.08kg/m2/20μm  0.08L/m2/20μm

Drying Time Temperature 10℃ 20℃ 25℃

Dry to touch 4hrs 3.5hrs 3hrs

Dry Hard 48hrs 28hrs 24hrs

Package 21kgs for one kit, part A 18kgs, part B 3kgs

Should the wall surface be painted with the primer or putty first?

Putty is mainly used for filling and leveling. The primer has an anti-alkali effect and can reduce the amount of topcoat. Some people use the primer directly without putty, but the overall effect is not good. The normal process is putty (three times), sealing primer (one time) and topcoat (two times). This way the effect is the best.

Why use a sealing primer?

The function of the sealing primer:

(1) Seal the substrate, penetrate into the internal structure of the substrate, block the capillary pores in the substrate, reduce the number of open pores in the substrate, increase the number of closed pores, inhibit the penetration of paint moisture, and make the penetration uniform. Make the substrate absorb the coating evenly.

(2) The sealing primer can prevent moisture, effectively isolate the alkali from the coating layer, and prevent the alkali from destroying the coating.

(3) Reinforce the loose and weak substrate and strengthen it.

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