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.
LOCTITE® SI 5926 is a blue, acetoxy silicone paste for gasket replacement or gasket dressing, typically on applications like valve covers, timing gear covers, differential covers, oil pans, transmission pans, water pumps and thermostat housings. LOCTITE® SI 5926 cures when exposed to moisture in the air to form a rigid, flexible, silicone rubber gasket. Due to its flexible nature, it enhances the load-bearing and shock-absorbing characteristics of the bond area. It also resists aging, weathering and thermal cycling without hardening, shrinking or cracking.
- Very low strength for ease of disassembly
- Room temperature vulcanizing (RTV) curing
- Service/operating temperature: -54°C to 204°C (-65°F to 399°F)
- Enhances load bearing & shock absorbing characteristics of bond area
| 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 | Blue |
| Cure speed vs time, 24.0 hr. | 2.5 mm |
| Gap fill | 1.0 mm |
| Recommended for use with | Metal, Plastic |
