Weicon Black Seal

WEICON Black-Seal is a high-temperature, one-component black sealant based on polysiloxane, ideal for bonding and sealing components exposed to oils, greases, pressure, and temperature extremes. Suitable for use on gearboxes, valve covers, oil pans, flanges, tanks, and more. The product is solvent-free, highly elastic, and cures with atmospheric moisture.

Applications:

• sealing gearboxes, valve covers, and oil pans

• protection of tanks and flanged connections

• suitable for industrial and automotive assemblies

• excellent resistance to oils, greases, and aging

Technical details:

• Base: 1K polysiloxane (acetate)

• Color: black

• Consistency: paste

• Density: 1.06 g/cm³

• Shore A hardness: 30

• Temperature resistance: -60°C to +280°C (short-term to +300°C)

• Elongation at break: 500%

• Tear resistance: 4.0 N/mm²

• Skin formation: after 7 minutes

• Cure rate: 2–3 mm / 24 h

• Max gap fill: 5 mm

• Thermal conductivity: 0.3 W/m·K

• Dielectric strength: 21 kV/mm

• Shelf life after opening: 12 months

• ISSA-Code: 75.634.24/25/26

• IMPA-Code: 815284/85/86