What is neutral silicone weatherproof sealant?

Answer:
Neutral silicone weatherproof sealant is a one - component, neutral organic silicone sealant with excellent weather resistance, elasticity, adhesion and anti - aging properties. After curing, it forms a flexible colloid and is suitable for caulking, sealing and bonding in fields such as construction, decoration and automotive.

What are the differences between neutral silicone sealant and acidic sealant?

Answer:
Acidic sealant: Releases acetic acid during curing, which may corrode materials such as metals and cement. However, it cures quickly and has a relatively low price.
Neutral sealant: Releases no corrosive substances during curing, is safer for most materials (such as glass, metal, plastic), and has a wider range of applications. But its curing time is slightly longer.

What scenarios is neutral silicone weatherproof sealant suitable for?

Answer:
Construction caulking (such as joints of doors, windows and curtain walls).
Bonding and sealing of materials such as glass, aluminum and stone.
It is not suitable for environments where it is immersed in water for a long time or exposed to extremely high temperatures (such as over 150°C).

How long does it take to cure?

Answer:
Tack - free time: Approximately 30 minutes to 1 hour (a film forms on the surface).
Full curing: Usually takes 24 - 72 hours (affected by temperature, humidity and adhesive layer thickness).
Tip: Avoid contact with water or external force extrusion during the curing process.

How to construct correctly?

Answer:
Clean the surface of the substrate to ensure there is no oil, dust and moisture..
Use a caulking gun to apply the sealant evenly to fill the gap.
Use a spatula or gloved finger to smooth the colloid to ensure it is compact.
Avoid touching or moving the components before curing.

Is it environmentally friendly and harmless?

Answer:
It complies with national standards (such as GB/T 14683 - 2017) and does not contain harmful substances such as formaldehyde and benzene. However, it is recommended to ventilate during construction and avoid direct contact with skin or eyes.

What is the temperature resistance range?

Answer:
Usually it is - 50°C to 150°C, and some high - performance products can reach 200°C. For long - term high - temperature environments, special high - temperature - resistant sealants should be selected.

How to store?

Answer:
Unopened: Store in a cool and dry place (5 - 30°C), and the shelf life is generally 12 months.
Opened: Seal the nozzle of the sealant and use it as soon as possible (within 1 month).

What are the possible reasons for bonding failure?

Answer:
The surface of the substrate is not cleaned or is wet.
The colloid is stressed or comes into contact with water before it is fully cured.
The materials are incompatible (for example, some plastics require special sealants).

How to remove excess sealant?

Answer:
When uncured: Wipe with a damp cloth.
After curing: Carefully scrape off with a blade or dissolve with a special silicone sealant cleaner.

What color options are available?

Answer:
Common colors include transparent, white, black, gray, etc. Some models support custom colors.