Everbuild Kos Fire Cement Buff 6kg 484670 PCKOSFIRE6

Brand: Everbuild
 QR37373 |  In Stock

  • RRP£18.53 Inc. VAT
  • OUR PRICE £13.00

    £15.60   Inc. VAT
  • Product Code: PCKOSFIRE6
  • SKU: 484670
  • EAN: 5010618005118
  • MPN: 

Everbuild Kos Fire Cement Natural Buff 6kg Bucket 484670 PCKOSFIRE6

Trade 6kg Tub - Trade Price - Money Saver Deal

Barcode: 5010618005118

Sika Code: 484670

MPN: PCKOSFIRE6

Size: 6kg Bucket

Colour: Buff


Everbuild KOS Fire Cement Buff – Heavy-Duty High-Temperature Sealant (6kg)

The Everbuild KOS Fire Cement Buff is a robust, heat-resistant sealant designed to provide secure and durable sealing in high-temperature applications. Supplied in a large tub, this versatile fire cement is ideal for sealing flue joints, repairing stoves, patching fireplaces, and maintaining solid fuel appliances. With its heat resistance of up to 1250°C and professional buff finish, it is a reliable choice for both domestic and industrial use. offers exceptional durability and ease of application, making it perfect for demanding high-temperature tasks. Its pre-mixed formulation allows for quick and straightforward use, while the buff finish ensures an aesthetically pleasing appearance for stoves, fireplaces, and flue systems.


Features and Benefits of Kos Fire Cement:

  • High-Temperature Resistance: Withstands temperatures up to 1250°C, ensuring long-lasting performance in extreme conditions.
  • Durable and Crack-Resistant: Resists cracking, crumbling, and degradation over time, even with regular heat exposure.
  • Professional Buff Finish: Provides a clean, polished look that blends seamlessly with fireplaces, stoves, and other appliances.
  • Gas-Tight Seal: Ensures secure, leak-proof joints, enhancing system safety and efficiency.
  • Pre-Mixed and Ready to Use: Convenient and easy to apply directly from the tub, saving time and effort.
  • Versatile Applications: Suitable for use in flues, stoves, fireplaces, chimneys, and industrial heating systems.
  • Generous 6kg Tub: Perfect for larger projects, professional use, or frequent maintenance tasks.


Fire Cements and Compounds – Reliable High-Temperature Solutions

Discover our premium range of fire cements and compounds, designed for high-temperature sealing, repairing, and maintenance tasks. Whether you're working on flues, stoves, fireplaces, or solid fuel appliances, our products provide the durability and performance needed to handle extreme heat. With trusted brands like Everbuild, our fire cements withstand temperatures up to 1250°C, ensuring long-lasting, secure seals and leak-proof joints.

Available in a variety of sizes and finishes, including buff and black, these solutions are suitable for both domestic and industrial applications. Perfect for flue joint sealing, fireplace restoration, and chimney maintenance, our range is ideal for professional tradespeople and DIY enthusiasts alike.

Explore easy-to-apply, pre-mixed formulas in convenient cartridges and tubs, offering unbeatable convenience and reliability. Choose from our high-performance fire cements and compounds to ensure safety, efficiency, and peace of mind for all your high-temperature projects.


How to Use Everbuild KOS Fire Cement Buff?

  1. Prepare the Surface: Clean the area thoroughly, ensuring it is dry and free of grease, dust, or debris.
  2. Apply the Cement: Use a trowel or spatula to spread the cement evenly across the joint or repair area.
  3. Smooth the Finish: Shape and smooth the cement using a damp cloth or tool for a professional appearance.
  4. Allow to Dry: Let the cement air-dry before exposing it to heat. Gradually increase the temperature to fully cure the material.


Typical Applications For Everbuild KOS Fire Cement Buff:

  1. Sealing Flue Joints: Creates secure, gas-tight seals in flue pipes, chimneys, and solid fuel systems.
  2. Fireplace Repairs: Ideal for patching cracks and restoring damaged fireplaces and hearths.
  3. Stove Maintenance: Ensures reliable seals and repairs for wood-burning and multi-fuel stoves.
  4. Chimney Sealing: Suitable for fixing cracks and ensuring secure seals in chimneys and high-temperature areas.
  5. Industrial Heating Systems: Effective for boilers, furnaces, and other high-temperature equipment.


Questions and Answers?


Kos Fire Cement Buff 6kg Large Bucket (FAQs)

1. What makes the Everbuild KOS Fire Cement Buff suitable for high temperatures?

The Everbuild KOS Fire Cement Buff is specifically formulated to withstand temperatures up to 1250°C. Its heat-resistant properties prevent cracking, crumbling, or degradation even under extreme conditions, making it ideal for use in flues, stoves, and fireplaces.

2. Can I use this fire cement for outdoor applications?
Yes, the fire cement is suitable for outdoor use in chimneys or flue systems. However, it’s important to ensure the cement is fully cured before exposing it to adverse weather conditions such as rain or frost. Gradual heating helps set the cement properly and enhances its durability in outdoor environments.

3. Does the fire cement harden, and how long does it take to cure completely?
Yes, the cement hardens after application. Initial drying typically occurs within a few hours, but full curing depends on exposure to heat. For best results, gradually introduce heat to the system to ensure a strong, durable bond. In low-heat applications, the curing process may take longer.

4. How can I prepare the surface before applying this fire cement?
Before applying, clean the surface thoroughly to remove any dust, grease, or debris that could interfere with adhesion. Ensure the area is dry, as moisture can affect the bonding process. A clean and prepared surface helps achieve a strong and secure seal.

5. Is the buff finish designed to match specific appliances or settings?
Yes, the buff finish is designed to blend seamlessly with traditional and modern fireplaces, stoves, and flue systems. Its neutral tone complements most appliances, providing a clean and professional appearance without the need for additional finishing.

6. How do I remove excess cement during or after application?
For best results, remove excess cement with a damp cloth or sponge immediately after application, while the material is still wet. Once the cement hardens, it will require mechanical methods, such as scraping, for removal.

7. Is this product safe to use with gas appliances?
Yes, the fire cement is safe for use with gas appliances. It forms a secure, gas-tight seal, preventing leaks and ensuring the safe operation of gas heating systems.

8. Can this cement be used for repairing cracks in firebricks?
Yes, it is excellent for repairing cracks or filling gaps in firebricks and similar high-temperature materials. Its robust formulation ensures a strong bond that withstands the intense heat generated by fireplaces and stoves.


The Everbuild KOS Fire Cement Buff (6kg Tub) is a dependable and versatile product for high-temperature applications. These FAQs address common concerns and provide practical tips to help you achieve the best results with this trusted fire cement.



Always Read the Official Technical Data sheet prior to use to make sure you have all the details are correct and that there have not been any changes to instructions.

All Fireplace and Heat Related Products

Data
Brand Kos
Manufacturer Everbuild
Reference Code PCKOSFIRE6
Reference Code sika Sika 484670
Type Fire Cement
Size 6kg
Colour Buff
Name Link
Everbuild Kos Fire Cement Instructions Technical Data Sheet Download Attachment
Everbuild Kos Fire Cement Safety Data Sheet Download Attachment

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