Dow Corning 4102963 Rtv Silicone Joint Sealant 3 Oz

Product Description

The DOW CORNING 4102963 is a clear RTV silicone joint sealant packaged in a 3 oz tube, designed for sealing, bonding, and gasketing applications across a wide range of trade and industrial environments. Part of the 734 series, this sealant reaches a tack-free state in just 13 minutes and achieves full cure in 24 hours. It operates reliably from -85 degrees F to 356 degrees F, making it suitable for both extreme-cold and elevated-heat environments. HVAC technicians, plumbers, and general mechanical contractors use this type of product for sealing joints, penetrations, and connections where flexibility and temperature resistance are required.

This sealant is well suited for residential and light commercial applications involving HVAC systems, plumbing assemblies, and general mechanical equipment. It adheres to glass, metal, and plastic substrates, covering the most common surfaces encountered during service and installation work. The 3 oz tube format is appropriate for field repairs, spot sealing, and smaller installation jobs where a full-size cartridge is unnecessary. It meets MIL-A-46106 standards, which qualifies it for demanding service environments beyond typical residential use.

Key Features

• RTV silicone formulation with a 13-minute tack-free dry time for fast handling
• Full cure achieved in 24 hours under standard conditions
• Operating temperature range of -85 degrees F to 356 degrees F
• Adheres to glass, metal, and plastic surfaces
• Meets MIL-A-46106 military specification standards
• Clear color for clean, low-visibility finished joints

Compatibility

Designed as an OEM-style sealant for use on glass, metal, and plastic substrates in HVAC, plumbing, and general mechanical applications where a flexible, temperature-resistant silicone joint sealant is required.

Installation Notes

Apply to clean, dry, and grease-free surfaces for proper adhesion. Allow a minimum of 13 minutes tack-free time before handling and a full 24 hours before placing joints under load or exposing them to fluids. This product is typically applied by HVAC technicians and plumbers during assembly or service; follow applicable mechanical and building codes for sealant use on specific system types. Avoid applying over wet surfaces or in areas with active moisture until the sealant has fully cured.