WEICON HT 300 adhesive and sealant is red, high-temperature resistant (+300°C/+572°F), free of solvents, strong, and has acetatecross-linking properties. It is resistant to weathering, ageing and chemicals and is extremely elastic (breaking elongation of approx. 500%).
HT 300 is particularly suitable for heat-exposed bonds and seals and adheres very well to steel, aluminium, glass, ceramics and many additional materials.
HT 300 can be used in industrial furnaces, flue gas systems, heating installations, exhaust gas routing, heating cabinets and in many additional areas.
ISSA: 75.634.20/21
IMPA: 81 52 82/83
| Technical Data | |
|---|---|
| Basis | 1-K. Polysiloxan (Acetat) |
| Density | 1,28 g/cm³ |
| Viscosity | pasty |
| Stability/Run-off (ASTM D 2202) | 1 mm |
| Processing temperature | +5 bis +35 °C |
| Cure type | by humidity |
| Curing condition | from +5°C to +40°C and 30% to 95% relative humidity |
| Skin-over time | 12 min. |
| Cure speed (first 24 h) | 2-3 mm |
| Volume change (DIN 52451) | -1 % |
| Gap filling up to max. | 5 mm |
| Shelf life (+5°C to +25°C) | 12 months |
| Shore Hardness A (DIN 53505 / ASTM D 2240) ± 5 | 35 |
| Elongation at break (DIN 53504 / ASTM D 412) | ca. 500 % |
| Tensile strength of the pure adhesive/sealant | 2,0 N/mm² |
| Average tensile shear strength (DIN 53283/ASTM D 1002) | 1,3 N/mm² |
| Tear strength (DIN 53515 / ASTM D 624) | 6,0 N/mm² |
| Movement capacity max. | 15 % |
| Temperature resistance | -60 to +280 briefly (approx. 2 hrs.) +300 °C |
| Solid content | 100 % |
| Specific forward resistance | 2,5 x 10^15 Ohm/cm |
| Dielectric strength | 21 kV/mm |
| Thermal conductivity | 0,3 W/m·K |
| Overpaintable (liquid paint) | No |
| Building material category (DIN 4102) | B2 |
| TECHNICAL DOCUMENTS |
| WEICON SILICONE HT-300 HIGH TEMPERATURE TDS |
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