Floor Coating

PROTECH 300 Polyurea top coat

Polyurea top coat (for prevention of contamination & outside exposure)

PROTECH 300 is an exclusive top coat for polyurea based on urethane resin (non-yellowing type). Due to its excellent adhesion, weather resistance, and chemical resistance, beautiful appearance, and excellent color retention ability, it is applied for the purpose of protecting intermediate materials upon polyurea exterior painting.


Paint type
Modified synthetic resin (Two-Component)
Drying time
Drying time
Category 5℃ 20℃ 30℃
Set-to-touch 1 hour 30 minutes 10 minutes
Dry-through 18 hours 12 hours 8 hours
Over-coat (Min.) 18 hours 12 hours 8 hours
Over-coat (Max.) 5 days 3 days 2 days
Pot life 6 hours 4 hours 2 hours
Drying time
Above pot life and follow-up coating time have been measured under laboratory conditions and may vary depending on the construction site.
DR-700, DR-700L, DR-790
Dilution ratio
Up to 10%, volume ratio
Specific gravity
1.09 (Based on green color)
Theoretical Coverage
10 ㎡/L
Solid volume ratio
40±3 % (Based on green color)
Green, other ordered colors
Thickness of dried film
Mixing ratio
Base(A)/hardener(B)=4/1 (Weight ratio)
Glossy (Semihard, matte made of order)
Shelf life
12 months
Packaging unit
16L (Compounds)
Flash point

how to use

Surface treatment
1. Completely remove oil, moisture, sand, dust, and other foreign matter from the surface to be coated.
2. Cure concrete for at least 28 days at a temperature of 21℃ and a relative humidity of 60%.
3. For high-strength concrete (260㎏/㎠ or higher), blasting treatment should be carried out.
Coating method
1. Reinforce cracks, crevices, and joints between walls and floors with the New-Elastic Seal (N).
2. Apply smoothly on the undercoated surface using sawtooth scraper, rubber scraper, pitchfork, roller, etc.
Appropriate construction specifications
▷Primer : PROTECH 100(It may vary depending on the substrate.)
▷Intermediate coating 1 : CLEANTHANE 2100 PLUS(if necessary, for the purpose of base adjustment)
▷Intermediate coating 2 : PROTECH series
▷Top coat : PROTECH 300(coating for external exposure)
Coating conditions
1. Atmosphere Temperature: 5~35℃, Surface Temperature: 40℃ or below, Relative Humidity: 80% or less