DOWSIL™ 732 Clear Multi-Purpose Silicone Sealant – 139 mL (4.7 oz) Tube

DOWSIL 732 by DOWSIL (Dow Corning) is a professional-grade multi-purpose silicone sealant available in 139 mL (4.7 oz) Tube format. It is designed for use on Glass, Metal, Ceramic, Plastic surfaces, delivering long-lasting adhesion, flexibility, and environmental resistance across a wide range of industrial, commercial, and specialized applications. Clear in color, this product is trusted by maintenance professionals, OEM manufacturers, and engineers worldwide who demand consistent, specification-grade silicone performance in every application.

Technical Information

DOWSIL 732 Clear in the 139 mL (4.7 oz) tube format delivers the full performance of the trusted DOWSIL 732 general-purpose silicone sealant in a mid-size, hand-squeezable tube format — larger than the 90 mL tube but without the need for a caulk gun. It cures by atmospheric moisture to a clear, flexible silicone elastomer with excellent adhesion to glass, aluminum, ceramics, and plastics. The 139 mL size is well-suited to maintenance and repair tasks requiring more material than the standard 90 mL tube provides, while still offering the precision and convenience of direct tube application.

Why Choose DOWSIL 732?

• Mid-Size 139 mL Tube — More material than 90 mL, no caulk gun needed — ideal for maintenance
• Clear Cure — Optically clear sealant for glazing and glass bonding applications
• No Primer Required — Direct adhesion to glass, aluminum, ceramic, and most plastics
• UV & Ozone Resistant — Excellent weathering resistance for indoor and outdoor use
• Fast Cure — Skins over in 10–20 min, full cure in 24 hours at standard conditions

Frequently Asked Questions

Q: What is DOWSIL 732 Clear 139 mL tube used for?
A: DOWSIL 732 Clear 139 mL is used for general-purpose sealing, bonding, and glazing on glass, aluminum, ceramics, and plastics in construction, automotive, and industrial applications — wherever the 90 mL tube is too small but a caulk gun is not available.

Q: What is the MPN for DOWSIL 732 Clear 139 mL tube?
A: The Manufacturer Part Number (MPN) is 3138348.

Q: Is the 139 mL tube compatible with a caulk gun?
A: No. The 139 mL tube is a hand-squeezable format, not a caulk gun cartridge. For gun application, use the 300 mL cartridge format.

Q: What is the difference between MPN 3138356 (90 mL) and 3138348 (139 mL)?
A: Both are DOWSIL 732 Clear with the same chemistry. The only difference is package size: 90 mL for small precision jobs and 139 mL for slightly larger maintenance and repair tasks.

Q: Does DOWSIL 732 Clear turn yellow over time?
A: Quality silicone sealants like DOWSIL 732 are formulated for UV resistance and are far less prone to yellowing than acrylic or polyurethane sealants, though some yellowing may occur after very long-term UV exposure in extreme outdoor conditions.