Waterproof Coating

ENERGY SAVER COOL ROOF Water-based epoxy primer

Primer for roof concrete

This paint is a water-based epoxy paint manufactured by using water-based epoxy resin. Unlike oil-based epoxy, it is an eco-friendly paint that does not contain any ingredient harmful to humans. This paint has excellent adhesion and water resistance. It penetrates the concrete mortar surface uniformly, thereby enhancing the interlayer adhesion to the ENERGY SAVER cool roof intermediate coating.


Paint type
Modified epoxy / Modified amin (2-Component)
Drying time
Drying time
Category 10℃ 20℃ 30℃
Set-to-touch 1 hour 30 minutes 15 minutes
Dry-through 24 hour 8 hour 5 hour
Over-coat (Min.) 72 hour 48 hour 24 hour
Over-coat (Max.) 10 days 7 days 5 days
Pot life 1 hour 45 minutes 30 minutes
Tap water
Specific gravity
Apporx. 1.2
Dilution ratio
▷No dilution ▷Dilution rate: up to 3%, volume ratio(if necessary)
Thickness of dried film
Mixing ratio
Base(A)/Hardener(B)=1.74/1 (Weight ratio)
Shelf life
6 months
Packaging unit
4K, 15K (Compounds)

how to use

Surface treatment
1. Cure concrete for at least 28 days at a temperature of 21℃ and a relative humidity of 50%.
2. Completely remove the oil, moisture, sand, dust, laitance and other foreign matter from the surface and maintain surface smoothness.
3. The substrate with severe absorption of primer due to poor concrete should be reinforced by additional coating to exhibit excellent adhesion.
Coating method
1. Reinforce cracks, crevices, and joints between walls and floors with an epoxy putty after primer.
2. Apply smoothly to the base surface using a roller, etc. after evenly mixing the base and hardener.
3. Add the hardener to the base and use after evenly mixing for 3-5 minutes with a power stirrer.
Appropriate construction specifications
▷Primer : ENERGY SAVER COOL ROOF_Water-based primer
▷Intermediate coating : ENERGY SAVER COOL ROOF_Water-based intermediate coating
▷Top coat : ENERGY SAVER COOL ROOF_Water-based top coat
Coating conditions
1. Atmosphere Temperature: 5~35℃, Surface Temperature: 40℃ or below, Relative Humidity: 80% or less.
2. At low temperature and high humidity, water evaporation on the coating surface during coating is very delayed, and normal properties cannot be exhibited even when it is dried.