Enquiry
WEICON Black-Seal is black, high-temperature-resistant (+280 °C/+536 °F), free of solvents, strong, oil-resistant, grease-resistant, pressure-resistant, resistant to ageing and extremely elastic (breaking elongation of approx. 500%). It is suitable for bonding and sealing in applications where particularly high oil and grease resistance is required. The product can be used on gearbox, valve and casing covers, oil sumps, water pumps, gears and axles, flanges, tanks and containers, and in many other areas.
If you are looking for a high-temperature resistant, moisture-curing sealant for corrosion-sensitive applications, LOCTITE® SI 5920 could be a great fit. Its thixotropic nature allows for easy flow dispensing, while preventing the migration of liquid product once applied to the part. It is ideal for sealing flexible flanges with machined or cast surfaces and is particularly suitable for high temperature applications up to 350°C (662°F). It is also used for electrical insulating applications.
- For flexible flanges
- Temperature resistance up to 350°C (660°F)
- Resists aging, weathering, thermal cycling
- For corrosion-sensitive electrical assemblies
- Electrically insulating
| WEICON SPESIFICATION | |
| Base | 1-C. polysiloxane (acetate) |
| Colour | Black |
| Solid Content | 96% |
| Cure Type | Moisture-curing |
| Stability/Run-off (ASTM D 2202) | 1.0 mm |
| Density | 1.06 g/cm³ |
| Curing Condition | +5°C to +40°C and 30% to 95% rel. air humidity |
| Processing Temperature | +5°C to +35°C |
| Curing Speed in the First 24 h | 2 - 3 mm |
| Skin-over Time | 7 min. |
| Gap Bridging (up to max.) | 5 mm |
| Max. Sealing Joint Width | 25 mm |
| Tensile Strength (ISO 37 / S3A) | 2 N/mm² |
| Tensile Strength of the Pure Adhesive and Sealant (ISO 37) | 2 N/mm² |
| Elongation at Break (Tensile) (DIN 53504/ASTM D412) | 500% |
| Medium Lap Shear Strength (DIN EN 1465/ASTM D 1002) | 0.7 N/mm² |
| Elongation at Break (ISO 37, S3A) | 470% |
| Tear Resistance (DIN 53515 / ASTM D 1002) | 4 kN/m |
| Elongation at 100% (ISO 37 S3A) | 0.7 N/mm² |
| Movement Absorption (max.) | 15% |
| Volume Change (DIN 52451) | -9% |
| Hardness (Shore A) (DIN ISO 7619) | 30±5 |
| Temperature Resistance | -60°C to briefly +280°C (approx. 2 h), +300°C |
| Thermal Conductivity | 0.2 W/m·K |
| Resistance | 2.5 x 10^15 Omega x m |
| Dielectric Strength | 21.0 kV/mm |
| Building Material Class (DIN 4102) | B 2 |
| Shelf Life | 12 months |
| LOCTITE SPESIFICATION | |
| Color | Copper |
| Cure speed vs time, 24.0 hr. | 2.5 mm |
| Extrusion rate | 275.0 g/min. |
| Gap fill | 1.0 mm |
| Lab shear strength | 1.4 N/mm² |
| Number of components | 1 part |
| Recommended for use with | Metal, Plastic |
| Storage temperature | 8.0 - 21.0 °C |
