English
Español
tiếng việt
русский
One-component, moisture-curing silicone elastomer offering excellent adhesion to diverse substrates without primer.
Low modulus and high elongation for superior stress relief in dynamic joint applications.
Excellent resistance to UV radiation, ozone, and extreme temperature cycling (–55 °C to +180 °C).
Good electrical insulation properties with stable dielectric performance over time.
Low volatility and compliant with ASTM E84 Class A surface burning characteristics for fire-safe environments.
Sealing and bonding of architectural curtain walls and façade systems.
Joint sealing in precast concrete and structural glazing assemblies.
Electrical enclosures and LED lighting housings requiring environmental protection.
Transportation: bonding and sealing of bus, rail, and marine interior panels subject to vibration.
Industrial equipment housings exposed to weathering and thermal cycling.
| Chemical Type | Acetoxy-cure silicone elastomer |
| Product Form | Thixotropic paste, single-component |
| Appearance | Off-white to light gray, smooth uniform paste |
| Primary Applications | Structural and semi-structural sealing, bonding, and gasketing |
| Key Features | Primerless adhesion, low modulus, high movement capability (±50%) |
| Benefits | Reduced labor cost, long-term durability, minimal maintenance |
| Cure Mechanism | Moisture-cured at ambient temperature |
| Shelf Life | 9 months unopened at ≤25 °C in original sealed packaging |
Q1: What is the primary function of DOWSIL SE 1771 Silicone in coating and ink formulations?
A: DOWSIL SE 1771 Silicone is a reactive silicone additive designed to enhance surface properties—particularly slip, mar resistance, and substrate wetting—without compromising intercoat adhesion or film integrity. It co-reacts with common resin systems during cure, providing durable, non-migrating performance.
Q2: Is DOWSIL SE 1771 compatible with UV-curable and thermally cured systems?
A: Yes, it demonstrates broad compatibility with acrylic, polyester, epoxy, and polyurethane-based systems, including both free-radical UV-curable and thermal-cure chemistries. Its reactive silane functionality allows for stable incorporation and covalent integration into the polymer network.
Q3: How does DOWSIL SE 1771 differ from non-reactive silicone additives?
A: Unlike conventional non-reactive silicones—which may bloom, migrate, or impair adhesion over time—DOWSIL SE 1771 contains hydrolyzable alkoxy silane groups that chemically bond to the matrix. This results in long-term stability, reduced surface recontamination risk, and improved recoatability.
Q4: What are the recommended handling and storage conditions?
A: Store in tightly sealed original containers at temperatures between 5–30 °C, protected from moisture and direct sunlight. Avoid prolonged exposure to ambient humidity prior to use, as premature hydrolysis may affect performance. Always follow standard industrial hygiene practices for organic silanes.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
