DOWSIL™ 730 Solvent Resistant Silicone Sealant – 90 mL (3 oz) Tube
DOWSIL 730 by DOWSIL (Dow Corning) is a professional-grade solvent resistant silicone sealant available in 90 mL (3 oz) Tube format. It is designed for use on Chemical Processing, Metal, Plastic, Glass surfaces, delivering long-lasting adhesion, flexibility, and environmental resistance across a wide range of industrial, commercial, and specialized applications. Translucent 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) | 4097333 |
| Brand | DOWSIL (Dow Corning) |
| Product / Model Name | DOWSIL 730 |
| Color | Translucent |
| Package Size | 90 mL (3 oz) Tube |
| Product Type | Solvent Resistant Silicone Sealant |
| Specification | N/A |
| Compatible Substrates | Chemical Processing, Metal, Plastic, Glass |
Technical Information
DOWSIL 730 is a fluorosilicone-based, one-part moisture-cure sealant engineered for applications where standard silicone sealants fail due to solvent, fuel, or oil exposure. Its fluorosilicone polymer backbone provides exceptional resistance to swelling, softening, and degradation in contact with aromatic hydrocarbons, aliphatic fuels, aviation kerosene, hydraulic fluids, and industrial solvents that would quickly compromise conventional silicone elastomers. DOWSIL 730 is the sealant of choice for fuel system sealing, chemical processing equipment, aerospace maintenance, and industrial manufacturing wherever chemical aggression rules out standard silicone products.
Why Choose DOWSIL 730?
- ✅ Fluorosilicone Chemistry — Resists swelling in fuels, oils, and industrial solvents
- ✅ Aviation Fuel Compatible — Jet-A, JP-8, and hydraulic fluid resistant for aerospace use
- ✅ Chemical Processing Grade — Withstands aromatic and aliphatic hydrocarbons continuously
- ✅ One-Part Convenience — Moisture-cure — no mixing required for field applications
- ✅ Where Standard Silicone Fails — The engineered solution for solvent-exposed sealing applications
Frequently Asked Questions
Q: What makes DOWSIL 730 different from regular silicone sealants?
A: DOWSIL 730 is a fluorosilicone-based sealant formulated to resist swelling and degradation when exposed to solvents, fuels, oils, and a wide range of chemicals — a significant limitation of standard silicone sealants.
Q: What is the MPN for DOWSIL 730 90 mL tube?
A: The Manufacturer Part Number (MPN) is 4097333.
Q: What chemicals is DOWSIL 730 resistant to?
A: DOWSIL 730 resists aromatic and aliphatic hydrocarbons, aviation fuels, hydraulic fluids, mineral oils, and many industrial solvents. For specific chemical resistance data, consult the DOWSIL 730 Technical Data Sheet.
Q: Why is DOWSIL 730 more expensive than standard silicone sealants?
A: DOWSIL 730 uses a fluorosilicone polymer that is significantly more complex and costly to manufacture than standard silicone polymers. The fluorosilicone chemistry provides the superior solvent and fuel resistance that standard silicones cannot match.
Q: Where is DOWSIL 730 typically used?
A: DOWSIL 730 is used in chemical processing plants, fuel systems, aerospace maintenance, and industrial manufacturing wherever sealants are exposed to harsh solvents or fuels that would degrade standard silicone products.
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