UEJN807-Weathering sealant mastic

aggressive adhesion to most surface and conforms
to irregular contour. Effective seal against moisture,
air and dust for use in construction, automotive
applications offering a host of benefits including
ease of use.
Features
• Low temperature flexibility, exceptional long-term ageing characteristics, conformability.
• Superior adhesion to a variety of substrates such as glass, metal, wood, ceramic, concrete, masonry and some plastics.
• It is widely used in antenna system.
Standard size
• 63mm×3.175mm×0.6m
• 30mm×5mm×1m
• Other sizes can be available upon to request
Applications
• Sealing and waterproof for telecommunication joint, antenna system.
• Cross reference: 3M 2166#.
Technical data
Technical specification | Typical value |
Physical and chemical properties | |
Color | Black |
Thickness | 3.175mm |
Working temperature | -40°C to 55°C (-40°F to 131°F) |
Water absorption | <0.05% |
Flexibility | -40°F, >50%; 0°F, >160%; 77°F, >170% |
Heat resistance | |
85°C/185°F 24hr | No flow |
65°C/149°F 4hr | No flow |
Water and gas penetration | 0.1g/100in2/24hr |
Oxygen index: 55pphm×70hr | No cracking |
Anti-UV | |
60±3°C 4hr radiation | No cracking, no color change |
60±3°C 4hr condensation | No cracking, no color change |
Xenon light for 6 loops | Pass |













