DOWSIL 7091 20L High-Performance Neutral Cure Silicone Adhesive Sealant
DOWSIL™ 7091 Adhesive Sealant
Product Simple Attributes
DOWSIL™ 7091 is a high-performance neutral-cure silicone adhesive/sealant. This one-part formula cures at room temperature upon exposure to atmospheric moisture. With a non-sag paste consistency, it is easy to apply and cures into a tough, flexible rubber, ideal for bonding and sealing diverse substrates.
Product Introduction
DOWSIL™ 7091 utilizes an alkoxy cure system, enabling deep curing without external catalysts. It exhibits excellent adhesion to metals (e.g., painted steel, aluminum), ceramics, glass, and engineered plastics (e.g., ABS, polycarbonate), certified to railway standard EN 45545-2 (HL1-HL3). The cured material remains stable and flexible from -40°C to 180°C (-40°F to 356°F).
Product Special Attributes
- Curing: 15-minute skin-over time, full cure in 24 hours (~2mm depth at 23°C/50% RH).
- Mechanical Properties: Shore A hardness 32, tensile strength 2.5 MPa, elongation at break 680%, tear strength 15 kN/m.
- Compliance: Meets Dow stewardship standards; requires solvent cleaning (e.g., IPA, ).
Application scenarios
DOWSIL™ 7091 is designed for demanding applications requiring flexible bonds, such as glass-to-metal/plastic bonding, automotive FIPG gasketing, and railway interior assembly. It is also used in electronics for moisture sealing (performance validation required).
Typical Properties
| Property | Unit | Result | Test Method (ASTM/CTM) |
| Extrusion Rate | g/minute | 185 | CTM 0364 / ASTM D2452 |
| Viscosity (Low Shear) | Pa·sec | 609 | CTM 1377 |
| Tack-Free Time | minutes | 28 | MIL-S-8802E |
| Tensile Strength | MPa | 2.5 | ASTM D412 |
| Elongation at Break | % | 680 | ASTM D412 |
1. Who are we?
We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).
2. What products do you offer?
we supply high-performance adhesives and sealants from global leaders including:
Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.
3. How do you guarantee product quality?
Quality assurance through:
Mandatory pre-production samples approval
Final inspection by QC team before shipment
International certifications: SGS, UL, FDA, RoHS, REACH
4. Why choose us over other suppliers?
Reliable Supply:Authentic products from top manufacturers
Expert Support:Technical guidance for product selection
Global Compliance:Certifications meeting target market standards
Efficient Service:Customized solutions & professional support
5. What services do you provide?
Delivery:EXW/FOB/CIF
Payment:USD/EUR/CNY/HKD via T/T, L/C
Support:Technical consultation & logistics coordination
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Neutral Cure Silicone Adhesive Sealant DOWSIL 7091 20L Images
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