CRC® Multipurpose RTV Silicone Sealant, Applications: For Sealing, Bonding, Protection and Waterproofing in HVAC, Electrical, Construction, Metal Working, Characteristics: Chemically Stable After Exposure to the Elements, Chemical Base: Silicone, Application Time: 10 min., Clear, Size: 7.25 oz., Tube, Full Cure: 24 hr., Standards: TT-S-001543A Class B, Specific Gravity: 1.04, -76 to 356°F Temperature, Substrates: Adheres to Most Materials used in Industrial, Electrical, Metalworking and Construction Industries