High Temperature Gray Silicone 310 ml Resistant to 300 ºC | Chimney Sealing

Discover the ultimate sealing solution for the most demanding conditions with our 310ml High Temperature Gray Silicone. Specifically designed to withstand extreme temperatures up to 300°C, this silicone is the professional choice for ensuring watertightness and safety in chimneys, stoves, boilers, and any application where heat is a critical factor. Its advanced formulation provides exceptional adhesion to a wide range of materials, including metals, ceramics, glass, and concrete, ensuring a durable and reliable seal even under the most adverse working conditions. Forget about cracks and premature deterioration; this silicone maintains its structural integrity and flexibility, preventing gas leaks and guaranteeing the efficiency of your heating systems.

High-Temperature Gray Silicone (310 ml) is your perfect partner for the maintenance and installation of combustion systems. Its application is simple and its curing time is fast, allowing your projects to be completed efficiently. Its resistance to high temperatures does not compromise its durability against humidity, oils, and other common chemical agents found in demanding environments. Trust in superior quality to protect your home and ensure the proper functioning of your systems, minimizing risks and optimizing energy efficiency.

Main Features

• Extreme Temperature Resistance: Continuously withstands up to 300ºC, with higher peaks.

• Professional Grey Color: It blends discreetly into the aesthetics of fireplaces and heating systems.

• High Adhesion: Excellent grip on metals, ceramics, glass, concrete and other building materials.

• Lasting Flexibility: Maintains its elasticity after curing, absorbing vibrations and movements.

• Chemical and Humidity Resistance: Waterproof and resistant to oils, greases and chemical agents.

• Versatile Application: Ideal for sealing joints in chimneys, stoves, ovens, boilers, exhaust systems and industrial applications.

• Easy Application: Standard 310ml cartridge compatible with most applicator guns.

• Fast Curing: Rapid skin formation and complete curing in a few hours, depending on the thickness and environmental conditions.

• Guaranteed Safety: Prevents gas leaks and improves energy efficiency.

Frequently Asked Questions

How long does it take for silicone to cure?

The curing time varies depending on the thickness applied and the environmental conditions (temperature and humidity). Generally, it forms a skin in about 10-20 minutes and reaches full cure in 24 hours for thin layers, but can take up to 48 hours or more for thick layers.

Can I paint over this silicone once it's cured?

Painting over this silicone is not recommended. It is designed to be a strong yet flexible sealant, and most paints will not adhere properly or will crack with movement.

Is it suitable for direct contact with flame?

This silicone is designed to withstand high temperatures, but not for direct and continuous contact with an open flame. It is ideal for sealing areas exposed to radiant heat and hot gases, such as around stove or fireplace door seals, but not for filling gaps where a flame would directly impact them.

On what type of surfaces does it adhere best?

It adheres excellently to clean, dry surfaces such as metals (iron, steel, aluminum), ceramics, glass, concrete, brick, and stone. It is important to ensure that surfaces are free of dust, grease, and rust for optimal adhesion.

How do you clean off excess product before it cures?

Excess fresh product can be easily wiped off with a cloth or spatula. If the product has begun to cure, it may need to be scraped off carefully. Once cured, removal can be more difficult.

Is it safe to use indoors?

Yes, it is safe to use indoors as long as it is applied in a well-ventilated area. During curing, it may release fumes; once cured, it is inert and safe.