Product Details.

WEICON Silicone HT 300 is a red, high-temperature silicone adhesive designed for demanding industrial applications where extreme heat resistance and durability are essential. This one-component, acetoxy-curing sealant provides outstanding adhesion and flexibility on a wide range of materials including metals, glass, ceramics, and many plastics.

Formulated to withstand continuous temperatures up to +280°C and short-term exposure up to +300°C, WEICON Silicone HT 300 ensures reliable performance in environments exposed to heat, vibration, and chemical stress. Its exceptional elasticity allows it to accommodate movement and thermal expansion without cracking or losing bond strength.

Ideal for use in industrial furnaces, exhaust systems, flue pipes, heating chambers, and machinery exposed to heat, this sealant provides a strong, long-lasting barrier against high temperatures and aggressive conditions. It is resistant to weathering, aging, and most industrial chemicals, ensuring long service life and reduced maintenance needs.

Supplied in a 310 ml cartridge, it is easy to apply using standard dispensing tools. Once cured, the silicone forms a durable, flexible, and heat-resistant seal that retains integrity even under continuous stress.

This product is available through authorized distributors in Maharashtra, ensuring authenticity and support for industrial buyers across the region.

Key Features 

• Continuous temperature resistance: up to +280°C
• Short-term temperature resistance: up to +300°C
• One-component, acetoxy-curing silicone formulation
• Excellent adhesion to a variety of substrates
• Resistant to aging, weather, and industrial chemicals
• Ideal for use in heating systems, exhaust assemblies, and machinery
• Easy application from 310 ml cartridge
• Distributed across Maharashtra by SFMKART

Technical Summary

• Color: Red
• Form: One-component, acetoxy-curing silicone
• Temperature Resistance: Continuous up to +280°C, short-term up to +300°C
• Curing Speed: ~2–3 mm in 24 hours at 23°C / 50% RH
• Density: Approx. 1.18 g/cm³
• Elongation at Break: Around 300%
• Shelf Life: 12 months (stored at +5°C to +25°C)
• Packaging: 310 ml cartridge
• Adhesion: Excellent on metal, glass, ceramic, and most plastics

Applications

• Exhaust & flue systems: Seals joints in exhausts and ducts exposed to heat.
• Furnaces & ovens: For inspection doors and high-temp joints.
• HVAC systems: Long-lasting seals in boilers and heating units.
• Automotive use: Works as a gasket sealant for engines and compressors.
• Electrical parts: Insulates components under thermal stress.
• Chemical plants: Seals valves and pipe joints under heat and chemicals.
• Metal & glass bonding: Forms strong, flexible, heat-resistant joints.

Why Choose SFMKART

• Authorized distributor in Maharashtra for genuine WEICON Silicone HT 300.
• Industrial supply experts with years of trusted service.
• Guaranteed authenticity—no repacked or duplicate products.
• Wide product range of adhesives and repair compounds.
• Fast delivery and secure packaging across Maharashtra.
• Customer support with technical guidance for every need.
• Proven performance—reliable under extreme heat and conditions.

Safety & Storage

• Store unopened cartridges at +5°C to +25°C.
• Shelf life: 12 months in original packaging.
• Avoid contact with uncured sealant on skin and eyes; ensure proper ventilation during application.