OB1® Black HeatProtect 1200°C Instant Fire Cement 290ml - Specialist Sealant for Heaters, Fireplaces & Ovens – High-Temperature, Non-Elastic, Hardening Joint Sealer - Bonding and Joining Temperature.

Solvent-free instant fire cement for heaters, fire places, boilers and stoves. Dries hard with a high temperature-resistant seal and can bond and join temperature-resistant stones. Suitable for sealing, patch and repair work. Ideal for domestic and commercial use and suitable for applications where no movement occurs. Solvent-Free Seals, Patches & Repairs 1200 C Max Heat Resistance Solvent-Free Seals, Patches & Repairs 1200 C Max Heat Resistance - Manufacturers part numbers: 30629562|637YE

• CONTENTS - 1 x OB1 HEAT PROTECT SEALANT BLACK 290ml with Nozzle
• Material Compatibility Notice – Not suitable for PE, PP, PC, PMMA, PTFE, soft plastics, neoprene, bituminous substrates, or areas with continuous water exposure. Shelf life up to 9 months when stored unopened between +5°C and +25°C.
• Easy Application & Cleanup – Supplied in a cartridge with a precision nozzle for controlled application. Uncured material can be cleaned with OB1 Multi Surface Cleaner; once cured, removal must be done mechanically.
• Proper Surface Prep for Best Adhesion – Substrates must be clean, dry, and free from dust or grease. Slightly moisten very porous surfaces before applying; OB1 Multi Surface Cleaner can help smooth and finish joints before curing.
• Reliable Performance Within Recommended Conditions – Best applied between +5°C and +40°C, and frost‑resistant during transport down to –15°C. Avoid use on damp or frozen surfaces for optimal results.
• Creates an Instant, Heat‑Cured Seal – Applies as a paste and dries to a solid, non‑flexible seal. When first heated, increase temperature gradually to ensure proper curing and avoid bubbling.
• Extreme Heat Resistance Up to 1200°C – Forms a hard, durable, high‑temperature seal ideal for stoves, flues, fireplaces, ovens, and chimneys; perfect for areas exposed to intense heat.