How to choose silicone sealant?
How to choose silicone sealant?
Silicone sealant is a paste made of polydimethylsiloxane as the main raw material, supplemented by cross-linking agent, filler, plasticizer, coupling agent, and catalyst mixed in a vacuum state. It reacts with water in the air at room temperature and solidifies to form an elastic silicone body.
The sealants, glass glue, silicone glue, barrel glue, barrel material, and silicone sealants seen on the market are actually just different names! ! !
Silicone sealant PK other organic products (such as polyurethane)
1. In the same application, it can usually provide three times more durable protection than organic products, thus avoiding premature failure and costly repair work.
2. Organic matter is prone to reversible reactions-organic polyurethane loses its curing properties and returns to a soft substance like chewing gum.
3. The difference between silicone products and organic products is the difference between long-term value and premature failure, and silicone wins.
4. Long life cycle, providing outstanding value. Suitable for applications and performance in various climates, it can resist UV, ozone, rain, snow and extreme temperatures. It is more durable than organic products, providing long-lasting flexibility and adhesion.
Why choose silicone?
Stability in a wide range of operating temperatures
If properly cured, most of our products can be used in the temperature range of -56 to 177°C (intermittent value 204°C), and some products have higher thermal stability and can be used at temperatures not less than 260°C (intermittent value 315°C)
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Weather resistance
Our products are highly resistant to UV, radiation and weather erosion, which can prevent hardening, cracking, crumbling, drying and brittleness.
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Chemical stability
Even after long-term exposure to a variety of chemicals and atmospheric pollutants, our sealants are not easily degraded.
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Good bond strength
Our products have good adhesion to a wide range of industrial materials, including glass, ceramics and wood, painted surfaces, and many metals and plastics.
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Electrical properties
Our products are designed with a wide range of applications in mind and can be used in a variety of electrical and electronic applications, including devices that are thermally cycled over a wide temperature range.
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Low flammability
In the event of a fire, silicone adhesives/sealants are not easy to burn. Many products meet UL flammability standards.
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Applications
Weatherproof sealing of various curtain walls, especially recommended for weatherproof sealing of glass curtain walls, aluminum-plastic panel curtain walls, and stone dry hanging;
Sealing of joints between metals, glass, aluminum, tiles, plexiglass, and coated glass, which are widely used in home decoration;
Sealing of joints on concrete, cement, rock, marble, steel, wood, anodized aluminum, and painted aluminum surfaces.