Heavy Duty Coating

CERACOAT Top coat for intumescent coating

Top coat for intumescent coating of indoor steel structures

This paint is a air-drying type acrylic paint that is a fast-drying top coat. It is suitable for top coat
of various indoor steel structures because of its excellent airless workability and adhesion.


Paint type
Acrylic / top coat
Drying time
Drying time
Category 5℃ 20℃ 30℃
Set-to-touch 40 minutes 20 minutes 10 minutes
Dry-hard 8 hours 4 hours 3 hours
Over-coat (Min.) 12 hours 5 hours 3 hours
Dilution ratio
▷Less than 10% (Volume ratio)
Specific gravity
Approx. 1.34 (Based on white color)
Theoretical coverage
10.6 ㎡/ℓ (1 time - 50㎛)
Solid volume ratio
Approx. 53±1%
White, other colors
Thickness of dried film
Flash point
At least 27℃
Shelf life
12 months (Dry, cool, and dark place with good ventilation)

how to use

Surface treatment
1. Completely remove oil, moisture, sand, dust, and other foreign matter from the surface to be coated.
Then, touch up with this paint and continue coating.
2. Sufficiently dry the surface to be coated before coating.
3. After primer coating, clean up the welded areas (blackened and rusted areas) with a disc sander.
Coating method
1. Although coating can be done by either brush, roller, air or airless spraying, airless spray coating is best for
obtaining a sufficient coating thickness.
2. Airless spray coating :
- Tip diameter : 0.019"~0.023"
- Injection pressure : More than 3000 P.S.I (210㎏/㎠)
- Store the coating equipment after cleaning with an exclusive thinner immediately after use.
3. Refinishing with several over-lapped brushing can cause stains by melting of existing film or
slow drying by increased film thickness. Wrinkles and color spreading could be occurred by existing film.
4. If you worry about bubbles on the topcoat by pinholes on midcoat, apply a primary coating with
diluted topcoat and apply the main topcoat.
5. In case of coating on the primer directly without intumescent midcoat, adhesion could be different by
primer types and coating interval. Please check the adhesion with primer before applying.
6. Additional tinting is unavailable due to the color difference and flooding.
Preceding and follow-up coating
1. Preceding coating : One-hour or two-hour fire-resistant paint (FIREBLOCKING series)
1. Sufficient performance after last coating is achieved after drying for 7 days at 20℃.
2. Excessive dilution may occurs drying problem, flooding and sagging.
3. Yellowing and chalking could be occurred by sunlight.