DOWSIL™ 732 Multi-Purpose Silicone Sealant – 300 mL (10.1 oz) Cartridge
DOWSIL 732 by DOWSIL (Dow Corning) is a professional-grade multi-purpose silicone sealant available in 300 mL (10.1 oz) Cartridge 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. White in color, this product is trusted by maintenance professionals, OEM manufacturers, and engineers worldwide who demand consistent, specification-grade silicone performance in every application.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | 1891987 |
| Brand | DOWSIL (Dow Corning) |
| Product / Model Name | DOWSIL 732 |
| Color | White |
| Package Size | 300 mL (10.1 oz) Cartridge |
| Product Type | Multi-Purpose Silicone Sealant |
| Specification | N/A |
| Compatible Substrates | Glass, Metal, Ceramic, Plastic |
Technical Information
DOWSIL 732 is a one-part, acetoxy-cure, general-purpose RTV silicone sealant available in the 300 mL cartridge format for caulk gun application. It cures on exposure to atmospheric moisture to form a tough, flexible silicone elastomer with excellent adhesion to glass, aluminum, ceramics, and most plastics without a primer. The cured sealant withstands continuous service temperatures from -65°C to +204°C and provides outstanding resistance to UV radiation, ozone, and weathering, making it equally suited to indoor and outdoor sealing applications in construction, HVAC, industrial, and commercial environments.
Why Choose DOWSIL 732?
- No Primer Required — Bonds directly to glass, aluminum, ceramics, and plastics
- 300 mL Cartridge — Caulk gun format for large joints and high-volume sealing jobs
- UV & Weather Resistant — Maintains seal integrity in outdoor and exposed environments
- Wide Temperature Range — Continuous service from -65°C to +204°C
- Fast Skin-Over — Skins in 10–20 minutes for efficient production workflow
Frequently Asked Questions
Q: What is DOWSIL 732 Multi-Purpose Silicone Sealant used for?
A: DOWSIL 732 is used for general sealing, bonding, and glazing on glass, aluminum, ceramics, and most plastics in construction, HVAC, automotive, and industrial applications.
Q: What is the MPN for DOWSIL 732 300 mL cartridge (1891987)?
A: The Manufacturer Part Number (MPN) is 1891987.
Q: What is the difference between MPN 1892070 and 1891987?
A: Both are DOWSIL 732 in 300 mL cartridge format. The different MPN may indicate a different color variant or regional packaging. Verify the exact color and specification with the product datasheet before ordering.
Q: How long does DOWSIL 732 take to fully cure?
A: DOWSIL 732 skins over in approximately 10–20 minutes and reaches full cure in approximately 24 hours at standard temperature and humidity conditions.
Q: Is DOWSIL 732 suitable for outdoor sealing?
A: Yes. DOWSIL 732 resists UV radiation, ozone, and weathering, making it well-suited for exterior building sealing, window glazing, and other outdoor applications.
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