Floor Coating
PROTECH NH-290(FR) FIRE RETARDANT POLYUREA
- usage
- Concrete structures requiring fire retardant specification.
Fire retardant polyurea Protech NH-290(FR) is a paint that is applied with designated spray equipment. It is a special paint mainly composed by bonding between Urea and Urethane and the curing reaction rate is achieved within few seconds to form dry film that has fire retardancy. Since it contains flame retardant powder, it is easily precipitated. So it must be stirred thoroughly before use and must be used while stirring.
specification
- Paint type
- Polyurea / Intermediate coating (2K)
- Drying time
-
Drying time Category 5℃ 20℃ 30℃ Set-to-touch less than 1 minute less than 1 minute less than 1 minute Dry-through less than 1 hour less than 1 hour less than 1 hour - Thinner
- Not Applicable
- Dilution ratio
- -
- Specific gravity
- Approx. 1.1 (A+B)
- heoretical Coverage
- 1.1 ㎏/㎡ (based on 1㎜)
- Solid volume ratio
- 99%
- Color
- Gray, Black
- Thickness of dried film
- -
- Mixing ratio
- Base(A)/Hardener(B)=100/100 (vol)
- Flash point
- -
- Shelf life
- 6 months (5~35℃ indoor storage)
- Package unit
- 410 ㎏ [A:210 ㎏ & B:200 ㎏]
PRODUCT PROPERTIES (PHYSICAL PROPERTY DATA)
- Tensile strength
- More than10 N/㎟
- Tear strength
- More than 50 N/㎜
- Elongation rate
- More than 300 %
- Hardeness
- More than Shore A 80
how to use
- Surface treatment
- 1. Completely remove oil, moisture, sand, dust, laitance and other foreign matter from the surface.
2. Cure concrete for at least 28 days at a temperature of 21℃ and a relative humidity of 50%.
3. Remove protruding parts using a grinder. Cracks in the substrate must be repaired before work. - Coating method
- 1. For the spray gun, Fusion AP gun and Round tip must be used. (Chamber is AR4242 type or higher)
2. Component B contains flame retardant pigment, so it must be applied while stirring using an agitator before use.
3. Remove the steel filter at the bottom of the urea equipment for component B as well as of the AP gun for component B. (Flame retardant pigments may get caught in the filter and may not be sprayed.)
4. Thickness per each application: 300~800㎛ & Number of application: Apply according to designed thickness.
5. If the surface condition is poor after the first application, reapply within 24 hours.
6. Due to the formation of dust in the overlapping area during spraying, it is finished with the embossing method.
7. Apply preliminary spray (1~4㎡) on corrugated cardboard or plastic to check for any abnormalities before applying.
8. Recommended equipment: Spray equipment for polyurea (equipment with Graco/Gusmer reactor E-XP 2 or higher)
▷Primer: Protech 100 (or Cleantan 1000, Blacktan 100) (Depending on surfaces)
▷Intermediate: Eco Cleanthane 2100 (KS F 3211) can be used for scraping coating and Proform NF Series
▷Top coat: Protech 300 (or DHDC-3000(H)) (When exposed to the outside) - Coating conditions
- 1. Spray application is available when the substrate temperature is -5 to 50℃
2. Concrete moisture content: 6% or less