Structural Silicon Sealant

Structural silicone sealant is a high-performance building sealing material that is usually used for the structural bonding of glass, metal, and other materials in the construction industry. This sealant has good weather resistance, temperature resistance, chemical corrosion resistance, and excellent elasticity and adhesion. They can remain stable over a wide range of temperatures and are able to adapt to different environmental conditions.

 

 

High adhesion: For most building materials such as glass, anodized aluminum, granite, and painted metal materials, including most fluorocarbon paint materials, superior adhesion is achieved without the use of primer.

Long term durability: The cured sealant maintains elasticity within the temperature range of -40 ° C to+150 ° C, without embrittlement, cracking, or tearing. Even when exposed to adverse weather conditions, its original design performance will not undergo significant changes due to aging and exposure to the atmosphere.

Good weather resistance: The cured sealant can resist the erosion of environmental factors such as UV, moisture, wind and snow, and maintain water and weather resistance characteristics.

Excellent physical properties: it has high tensile strength, ultimate elongation and tear strength, as well as good resistance to displacement.

Widely applicable: Suitable for structural applications, such as assembly between glass and metal materials assembled in factories or construction sites, it can form a durable and elastic waterproof interface.

Environmental friendliness: The silicone rubber formed after curing is harmless, and the by-product is non corrosive.

Easy to apply: Usually no primer is required, the construction time is short, the curing speed is fast, and it is easy to complete the construction quickly.

Good compatibility: It is compatible with most reflective glass and insulating glass, and will not cause chemical reactions or performance degradation.

These characteristics make Structural silicon sealant an indispensable material in many construction projects, especially suitable for situations that require high durability and stability.

 

 

Use the following points:

Ensure that the construction surface is clean, dry and free of oil and dust.

Mix the material according to the proportion in the product specification, if it is a two-component product, ensure that the two ingredients are well mixed.

Construction at appropriate temperature and humidity conditions to avoid construction in extreme weather conditions.

After construction, give sufficient curing time to achieve the best performance of the sealant.

Choosing the appropriate structured silicone sealant requires considering the following key factors:

Product type selection: select the single-component or two-component silicone sealant according to the actual application requirements. Single-component silicone sealant is cured at room temperature; two components should be mixed and cured, usually with faster curing speed and higher strength .

Performance parameters: focus on the tensile strength of silicone sealant, fracture elongation, weather resistance (ultraviolet light, wind and rain erosion, etc.), high and low temperature resistance, dielectric resistance (such as water resistance, oil resistance, chemical resistance, etc.) and environmental performance (such as low VOC, no solvent, etc.)

Applicable field matching: select special products matching with the application field, such as building curtain wall, door and window sealing, automotive glass installation, electronic equipment sealing, kitchen and bathroom waterproof sealing, etc.

Surface treatment: Ensure that the adhesive surface is dry, clean and free of grease and dust. For hard-bonded materials, polishing, cleaning, and undercoating may be required to enhance adhesion

Rubber operation: using rubber gun or manual extrusion, apply silicone sealant evenly and continuously to the bonding interface to ensure that gaps or holes are filled in to avoid air entrainment

Curing and curing: natural curing according to the time specified in the product instructions. During curing, avoid contact with moisture, grease or moving adhesive parts. It can be put into use after fully curing, pay attention to adequate filling and tightening.

Late maintenance and maintenance: regular inspection, found cracks, peeling and other problems should be repaired in time. According to the actual situation, clean and remove the failed or aging silicone sealant and re-glue.

 

 

 

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