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The weather-resistant structural fire protection system BST KMA is a combined two-layer coating that includes the heat-protective material BST MT and the fire-resistant thermally expanding material BST MA.
BST KMA increases the fire resistance of load-bearing metal structures to 120 minutes.
The BST KMA system forms a weather-resistant coating.
| Materials | BST MT / BST MA |
| Color | beige/gray |
| Density, g/cm³ | 0,82±0,1 / 1,12±0,1 |
| Mass fraction of dry residue, %, not less | 57±5 /55±5 |
| Interlayer drying at 20°C and humidity ≤65%, h | 6 / 3 |
| Adhesion of coating to compatible primers according to GOST 32702.2-2014, no more, point | 2 / 2 |
| Degree of expansion, %, not less | - / 2000 |
| Thinner, not more than 5% by weight | xylene/xylene |
| Fire retardant efficiency, min | 90 | 120 | ||
| Reduced metal thickness, mm | 3,4 | 3,4 | ||
| BST MT | BST MA | BST MT | BST MA | |
| Thickness of fire retardant coating, mm | 2,0 | 2,5 | 2,0 | 4,06 |
| Theoretical consumption, kg/m² | 3,44 | 5,0 | 3,44 | 8,13 |
- Surfaces must be dry and free of dust, degreased and primed, and free from defects.
- Before use, both BST MT and BST MA are mixed with a mechanical stirrer to a homogeneous consistency for 3-5 minutes.
- Both materials are applied layer by layer - BST MT from 3 to 4 layers, BST MA from 2 to 6 layers, application is recommended to be done by airless spraying or manually using paint brushes.
- The thickness of the first wet layer when applying BST MT should not exceed 500 microns, when applying BST MA it should not exceed 400 microns. All subsequent layers must be applied with a recommended thickness of one wet layer of no more than 1800 microns, both in the case of BST MT and in the case of BST MA.
- Interlayer drying of BST MT is from 6 hours, interlayer drying of BST MA is from 3 hours. Complete drying of the coating is achieved in no less than 7 days. Then it is possible to apply finishing enamel if necessary.
- Application temperature and BST MT and BST MA from -10°C to + 40°C, relative humidity no more than 85%.
- After application, wash all working tools and equipment with xylene, P5, P4.
- When working with BST MT and BST MA, it is necessary to use personal protective equipment.
- BST MT is packaged in sealed metal buckets weighing 15 kg.
- BST MA is packaged in sealed metal buckets weighing 18 kg.
- BST MT and BST MA should be stored and transported in a dry place, protected from direct sunlight, at temperatures from - 40°C to + 40°C.
- The shelf life in original, unopened packaging is 12 months from the date of production, subject to compliance with storage conditions.
| Materials | BST MT / BST MA |
| Color | beige/gray |
| Density, g/cm³ | 0,82±0,1 / 1,12±0,1 |
| Mass fraction of dry residue, %, not less | 57±5 /55±5 |
| Interlayer drying at 20°C and humidity ≤65%, h | 6 / 3 |
| Adhesion of coating to compatible primers according to GOST 32702.2-2014, no more, point | 2 / 2 |
| Degree of expansion, %, not less | - / 2000 |
| Thinner, not more than 5% by weight | xylene/xylene |
| Fire retardant efficiency, min | 90 | 120 | ||
| Reduced metal thickness, mm | 3,4 | 3,4 | ||
| BST MT | BST MA | BST MT | BST MA | |
| Thickness of fire retardant coating, mm | 2,0 | 2,5 | 2,0 | 4,06 |
| Theoretical consumption, kg/m² | 3,44 | 5,0 | 3,44 | 8,13 |
- Surfaces must be dry and free of dust, degreased and primed, and free from defects.
- Before use, both BST MT and BST MA are mixed with a mechanical stirrer to a homogeneous consistency for 3-5 minutes.
- Both materials are applied layer by layer - BST MT from 3 to 4 layers, BST MA from 2 to 6 layers, application is recommended to be done by airless spraying or manually using paint brushes.
- The thickness of the first wet layer when applying BST MT should not exceed 500 microns, when applying BST MA it should not exceed 400 microns. All subsequent layers must be applied with a recommended thickness of one wet layer of no more than 1800 microns, both in the case of BST MT and in the case of BST MA.
- Interlayer drying of BST MT is from 6 hours, interlayer drying of BST MA is from 3 hours. Complete drying of the coating is achieved in no less than 7 days. Then it is possible to apply finishing enamel if necessary.
- Application temperature and BST MT and BST MA from -10°C to + 40°C, relative humidity no more than 85%.
- After application, wash all working tools and equipment with xylene, P5, P4.
- When working with BST MT and BST MA, it is necessary to use personal protective equipment.
- BST MT is packaged in sealed metal buckets weighing 15 kg.
- BST MA is packaged in sealed metal buckets weighing 18 kg.
- BST MT and BST MA should be stored and transported in a dry place, protected from direct sunlight, at temperatures from - 40°C to + 40°C.
- The shelf life in original, unopened packaging is 12 months from the date of production, subject to compliance with storage conditions.
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