Boss 389 Weather Sealant for Aluminum Panels
BOSS ® 389 Weather Seal Silicone Sealant is an one part neutral cure, medium modulus, low odor, construction grade sealant that offers excellent adhesion, weather ability and compatibility with wide variety of materials. BOSS 389 is ideally suited for weather proofing, waterproofing, sealing, expansion and control joints and general purpose glazing.
BOSS ® 389 has excellent adhesion to glass, glazed surfaces, galvanized steel, anodized aluminum, concrete, cement, wood, ceramics, painted surface and many plastics.
Boss 389 Weather Sealant for Aluminum Panels fully meets or exceeds the requirements of the following specifications:
TYPICAL PROPERTIES | |
Uncured | |
Specific Gravity | 1.40 |
Colors | Black, Grey and White |
Sag/Slump | NIL |
Tack-Free Time | > 90min |
Cure Time at 75°F (24°C) and 50% RH (3/8 ‚ thickness) | 24 hours |
Full Cure time | 7- 10 days |
Tooling time | 25-30 min |
Extrusion Rate | 275 g/min |
Cured @ Physical | |
Elongation | 375% |
Duro meter Hardness, Shore A, points | 25 |
Tensile Strength, psi | 195 |
Dynamic Movement Capability Cycled at 1/8‚¢ hr.,1/8min.% | ± 30 |