TEROSON MS 939 FR 2C is a high-viscosity, fire-resistant, two-component adhesive based on silane-modified polymers. It cures to an elastic material and is free from solvents, isocyanates, and silicones. The curing process starts after mixing Component A (black) and Component B (white), independent of humidity.
Designed for the rail manufacturing and repair industry, suitable for:
| Property | Component A | Component B | Mixture (A+B) |
|---|---|---|---|
| Density (g/cm³) | ~1.45 | ~1.3 | – |
| Consistency | Pasty, thixotropic | – | – |
| Sag resistance | – | – | No sagging (DIN profile 15 mm) |
| Pot life (min, at 23°C, 50% RH) | – | – | ~5 |
| Open time (min, at 23°C, 50% RH) | – | – | 40 – 45 |
| Shore-A hardness (ISO 868) | – | – | ~55 |
| Tensile strength (MPa, ISO 37) | – | – | ~3.5 |
| Elongation at break (% at 200mm/min, ISO 37) | – | – | ~180 |
| Application temperature (°C) | – | – | 5 to 40 |
| Service temperature (°C) | – | – | -40 to +100 |
| Short-term exposure (1h, °C) | – | – | 120 |
| Fire resistance (EN 45545-2) | – | – | R1 HL2, R7 HL3 |
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