Neutral silicone sealant is a one-component, moisture-curing elastic adhesive that stands out for its non-corrosive nature, making it ideal for use in scenarios involving sensitive materials such as copper, aluminum, marble, natural stone, and coated metals—applications where acidic silicone sealants would cause discoloration or surface damage, including the installation of high-end decorative stone facades, bonding of metal curtain wall components, and sealing of precision electronic device casings. Its usage method is straightforward: after ensuring the substrate surface is clean, dry, and free of oil and dust, the sealant is extruded evenly using a sealant gun along the joints or gaps that require sealing, and it cures naturally by absorbing moisture in the air without the need for additional curing agents; during the curing process, it forms a flexible, rubber-like elastomer that maintains excellent adhesion and sealing performance even under conditions of structural deformation, thermal expansion, or vibration, while also resisting aging, UV radiation, and harsh weather, ensuring long-term reliability in both indoor and outdoor environments.
2. Features
Non-Corrosive and Compatible: It releases neutral substances during curing (such as alcohol or oxime), avoiding chemical reactions with metal, stone, and coated surfaces, thus protecting the appearance and performance of high-value substrates.
Superior Elasticity and Durability: After full curing, it exhibits a high elongation at break (usually over 300%) and excellent recovery performance, effectively adapting to the thermal expansion and contraction of building materials, and is not prone to cracking or peeling.
Strong Environmental Adaptability: It can maintain stable performance in a wide temperature range (-50°C to 180°C), and has excellent resistance to water, oil, chemical reagents, and mold, making it suitable for both humid environments (such as bathrooms and kitchens) and outdoor harsh conditions.
Low Odor and Environmentally Friendly: Compared with acidic silicone sealants, it has a milder odor during construction, and complies with relevant environmental protection standards, making it more suitable for indoor decoration and food-related areas (such as commercial kitchens).
3. Applications
High-End Building Curtain Walls: Sealing and bonding of glass curtain walls, metal plate curtain walls, and stone curtain walls, ensuring the airtightness, watertightness, and structural stability of the curtain wall system.
Indoor and Outdoor Decoration: Sealing the joints of marble, granite, and other natural stone materials in hotels, shopping malls, and high-end residences; bonding and sealing of aluminum alloy doors and windows, wooden doors, and decorative panels.
Automotive and Aerospace Fields: Sealing of automotive body joints, windshield installation, and sealing of aircraft cabin components, leveraging its high temperature resistance and vibration resistance.
Electronic and Electrical Industry: Sealing and waterproofing of electronic product casings (such as mobile phone base stations, outdoor monitoring equipment), and insulation and fixing of electrical components, protecting internal circuits from moisture and dust.
Food and Medical Related Areas: Sealing of commercial kitchen equipment (such as stainless steel stoves, refrigerators), and sealing of medical equipment casings, due to its low odor and non-toxic properties after curing.
Industrial Equipment Manufacturing: Sealing of pipelines, valves, and containers in chemical, pharmaceutical, and petroleum industries, resisting corrosion from various chemical media and ensuring the tightness of the equipment.