GEFEST-3S
Structural fire-retardant coating, based on Portland cement, expanded perlite, vermiculite, and targeted additives, is used for fire protection of steel and reinforced concrete structures. Application is carried out by wet gunning with plastering stations and manually.
GEFEST–3S is applied to achieve fire resistance levels of 1 to 7 according to GOST R 53295.
Fire-retardant ranges from R15 to R240 according to GOST 30247.
DESCRIPTION
The constructional fire-retardant coating "Gefest-3S" is a system consisting of an anti-corrosion primer (concrete-contact or acrylic-based primer), fire-retardant coating, and an additional (protective, decorative) layer applied as needed. The coating is designed for use in all types of atmospheres according to GOST 15150, excluding direct exposure to precipitation.
SPECIFICATIONS
- Coating color: from light gray to light beige.
- Theoretical consumption at a thickness of 10 mm: 3.5 – 4.0 kg/m2 excluding technological losses.
- Thickness of the first layer: 20 mm.
- Binder type: Hydraulic (Portland cement).
- Density: 450 kg/m3 ± 10%.
- Thermal conductivity: 0.078 W/mK.
- Initial setting time: 60 +/- 15 minutes.
- pH value: 10-11.
- Fire resistance: 1…7 groups of fire resistance according to GOST R 53295. Fire resistance limit R15-R240 according to GOST 30247.
- Flammability: non-flammable.
- Toxicity: non-toxic.
STORAGE CONDITIONS
Transportation and storage of the composition are carried out in the manufacturer's factory packaging, excluding direct exposure to moisture and damage to the integrity of the packaging.
The plaster should be stored in closed warehouse premises.
The warranty storage period is 24 months from the date of manufacture.
IMPORTANT LEGISLATIVE CHANGE
According to paragraph 5.4.3 of SP 2.13130.2020 "Fire Protection Systems. Ensuring the Fire Resistance of Protected Objects" in the edition of September 12, 2020, to achieve the required fire resistance of load-bearing elements of buildings of I and II degrees of fire-retardant, the use of expanding fire-retardant coatings with a PTM below 5.8 mm is not allowed.
