Fireproof cord FJ203 120mm for expansion joints, roll 2mb FJ-0008

Fire protection in expansion joints and gaps

The FJ203 fireproof cord is an advanced solution designed to protect expansion joints and gaps in building structures. Made of mineral rock wool, surrounded by flexible glass fibers, it provides effective fire protection for masonry, concrete walls, and floors. Its unique construction guarantees optimal filling of gaps, creating a barrier that limits the spread of fire and smoke.

Construction and application

The FJ203 cord is a woven rope that, thanks to its flexibility and ease of installation, performs well in all construction conditions. It is intended for sealing expansion joints and gaps in fire compartments. The possibility of one-sided baking further increases its versatility. The product has been tested according to EN 1366-4, which confirms its high effectiveness in terms of fire protection. Particularly recommended for applications requiring high fire resistance – up to EI 240.

Key features and benefits

• Effective fire protection: Provides protection for expansion joints and gaps in fire compartments, limiting the spread of fire and smoke.
• Easy installation: The flexible construction allows for quick and easy insertion of the cord into the gap, without the need for specialized tools.
• Versatility: Can be used in various types of building partitions (masonry, concrete, walls, floors).
• Durability: Made of high-quality materials ensuring long-lasting protection.
• Compliance with standards: Tested according to EN 1366-4, which guarantees its effectiveness and safety of use.
• Optimal filling: Special braiding of glass fibers ensures a perfect fit to the shape of the gap.

Choosing the right diameter of the cord is crucial to ensure full protection. Below is information to help you choose:

For a joint width of 5-10 mm, a cord diameter of 12 mm is required. For a joint width of 11-15 mm, a cord diameter of 20 mm is required. For a joint width of 16-20 mm, a cord diameter of 30 mm is required. For a joint width of 21-30 mm, a cord diameter of 40 mm is required. For a joint width of 31-40 mm, a cord diameter of 50 mm is required. For a joint width of 41-50 mm, a cord diameter of 60 mm is required. For a joint width of 51-60 mm, a cord diameter of 70 mm is required. For a joint width of 61-70 mm, a cord diameter of 80 mm is required. For a joint width of 71-80 mm, a cord diameter of 90 mm is required. For a joint width of 81-90 mm, a cord diameter of 100 mm is required. For a joint width of 91-100 mm (+20%), a cord diameter of 120 mm is required.

Remember to place the cord correctly inside the wall or ceiling – the surface of the cord should not protrude beyond the edges of the structure. For larger gaps, it is recommended to use two cords placed on both sides.