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Views: 0 Author: Site Editor Publish Time: 2025-06-19 Origin: Site
Silicone Sealant (globally recognized term) is an organosilicon-based material composed primarily of polydimethylsiloxane (PDMS) and silica polymers. It cures upon exposure to airborne moisture into a durable, rubber-like solid, offering exceptional flexibility, weather resistance, and adhesion.
Acetic Cure Type (Deacetylated): Fast-curing, with a characteristic vinegar odor.
Neutral Cure Types:
Alcohol Cure Type (Dealcoholized): Low odor, non-corrosive.
Amine Cure Type (Deaminated): High adhesion to challenging substrates.
Oxime Cure Type (Deoximated): Balanced performance for industrial use.
Single-Component silicone sealant: Air-moisture cured. Ready to use.
Two-Component silicone sealant: Mixes on-site for deep-section curing (A/B components).
Acidic Silicone Sealant: Cost-effective bonding for glass and non-sensitive materials.
Neutral Silicone Sealant: Non-corrosive, versatile for metals, plastics, and porous substrates.
Structural Silicone Glazing Sealant: High-strength for structural assemblies (e.g., curtain walls).
| Application Sector | Product Type | Key Uses |
|---|---|---|
| Construction & Glazing | Neutral Weatherseal | Sealing joints in windows, stone cladding, metal roofs. UV/weather resistant. |
| Structural Glazing | Structural Glazing Sealant | Bonding glass to metal in curtain walls (full structural support). |
| Sanitary & Kitchen | Sanitary Sealant | Waterproof sealing for baths, sinks, tiles. Mold/mildew resistant. |
| Industrial Assembly | Acidic/Neutral Sealant | Gasketing in automotive, electronics, HVAC & machinery. |
| Insulated Glass (IGU) | Structural Sealant | Edge sealing in double/triple glazing units. |
Surface Prep: Clean substrates with acetone (remove oil, dust). Roughen smooth surfaces.
Application: Apply via caulking gun. Tool joints within 10 minutes (neutral) or 30 minutes (acidic).
Curing:
Full cure depth: 3–4 days for 12mm joints.
Handling strength: 20 psi peel strength after 72 hours.
Safety: Use in ventilated areas (acetic odor dissipates after curing).
