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High-performance, addition-cure liquid silicone rubber with excellent thermal stability.
Low compression set and outstanding resilience for long-term sealing performance.
Excellent electrical insulation properties over wide temperature and frequency ranges.
Good adhesion to common substrates including metals, plastics, and glass without primer.
UL 94 V-0 rated formulation for flame-retardant applications.
Automotive under-hood gaskets and vibration-damping components.
LED lighting encapsulation and optical lens bonding.
Power electronics potting and thermal interface materials.
Medical device seals requiring biocompatibility (ISO 10993 tested).
Industrial sensors and connectors requiring environmental protection.
| Chemical Type | Platinum-catalyzed addition-cure silicone elastomer |
| Product Form | Two-part liquid (Part A + Part B) |
| Appearance | Translucent, low-viscosity liquid |
| Base Polymer | Methylvinylsiloxane copolymer |
| Curing Mechanism | Heat-activated addition reaction |
| Shore A Hardness (7 days @ 25°C) | 45 ± 3 |
| Tensile Strength (ASTM D412) | 8.5 MPa typical |
| Volume Resistivity (ASTM D257) | 1.2 × 10¹⁵ Ω·cm |
Q1: What is the primary function of DOWSIL BY 11-026 Silicone in formulations?
A: DOWSIL BY 11-026 Silicone is a silicone-based additive designed primarily to provide surface modification, including improved slip, mar resistance, and substrate wetting in coatings, inks, and adhesives.
Q2: Is DOWSIL BY 11-026 Silicone compatible with waterborne systems?
A: Yes, it is formulated to be compatible with both solvent-borne and waterborne systems, though optimal performance may require evaluation under specific formulation conditions and pH ranges.
Q3: How should DOWSIL BY 11-026 Silicone be incorporated into a formulation?
A: It is typically added during the let-down or post-addition stage under moderate agitation. Pre-dilution with a compatible carrier solvent or resin solution may improve dispersion uniformity, especially in high-solids or viscous systems.
Q4: Does DOWSIL BY 11-026 Silicone affect cure chemistry or film formation?
A: It is generally non-reactive and does not interfere with common crosslinking mechanisms such as urethane, acrylic, or epoxy curing. However, compatibility testing is recommended when used with highly sensitive catalysts or low-energy cure systems.
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