Fire protection cords

Fire protection joint cord for expansion and movement joints – REX A1 SG 300 The modern joint cord SG 300 was developed as the powerful successor to the proven SG 300 N and meets the highest requirements just like its predecessor. It consists of a non-combustible joint filling system in accordance with DIN 4102-A1 and EN 13501-1 and, depending on the configuration, provides 30 to 180 minutes of reliable fire resistance. This prevents the transfer of heat, fire and combustible gases in expansion and movement joints – ideal for demanding projects in building construction, civil engineering, tunnelling and industrial construction. With improved material properties, optimised workability and a wider range of applications, the SG 300 joint cord sets new standards. Particularly important for existing applications: the 30 mm and 40 mm diameters of the SG 300 N are no longer available from the manufacturer. The SG 300 serves as a fully equivalent, compatible alternative and successor product. Common areas of use Building construction Tunnelling Civil and industrial construction Expansion and movement joints in walls and ceilings Product properties Like its predecessor SG 300 N, the SG 300 joint cord is based on the REX joint filling system, a non-combustible, highly resilient fire protection sealing system. Depending on configuration and joint width, the joint cord prevents the passage of fire and excessive temperatures for 30 to 180 minutes. Tested to DIN 4102 and EN 1366-4 Fire resistance classes: F 30 A, F 60 A, F 90 A, F 120 A, F 180 A (walls & ceilings) EN 13501-1 classifications: EI 90 -H-X-F-W00 to 55 For joints with shear stress: EI 90 -H-M65 (shear only) -F-W10 to 50 Building material class A1 – non-combustible Suitable for joint widths up to 55 mm Advantages of the SG 300 joint cord Certified fire protection for joints with and without shear stress Suitable for vertically shear-free joints up to 55 mm Usable up to 50 mm with vertical shear stress Up to 10 cm of shear movement in shear joints Maximum lateral expansion up to 7.5% of the joint width Flexible arrangement options for multi-layer installation Offset butt joints (500 mm) for optimal safety Overlapped butt joints for joints up to 30 mm Butt joints for joints over 30 mm Combinable with permanently elastic seals Existing combustible filling materials do not need to be removed Bonding with Litaflex adhesive 800 approved Notes on dimensioning The exact number of layers and the required dimensioning depend on the desired fire resistance class and the existing joint width. The relevant values can be found in the tables in the technical data sheet (page 4). Conclusion As the modern successor to the SG 300 N, the SG 300 joint cord offers a high-performance, non-combustible joint filling system and is every bit as good as its predecessor.

Sika® Backer Rod Fire – Fire protection joint backfill material made of mineral wool Sika® Backer Rod Fire is a high-quality, non-combustible joint backfill material for use in fire-protection-tested joint systems. The product consists of chemically based mineral wool fully enclosed in a stabilised glass fibre mesh. This guarantees high dimensional stability, temperature resistance and lasting performance. Product properties and advantages Non-combustible mineral wool backer rod Glass fibre mesh casing for high stability Optimal support for correct joint geometry High bulk density for reliable fire protection Suitable for demanding construction and fire protection applications Chemical base Mineral wool, enclosed in glass fibre mesh. Density Approx. 250 kg/m³ per EN 1602. Dimensions and joint sizing Correct joint sizing must be observed and is described in the European Technical Assessment ETA 23/0088. Selection rule: the diameter of Sika® Backer Rod Fire must be approx. 15% larger than the width of the joint to guarantee secure clamping. Joint width Sika® Backer Rod Fire diameter 7 – 10.2 mm12 mm 9 – 12.7 mm15 mm 12 – 17 mm20 mm 16 – 25.5 mm30 mm 24 – 34 mm40 mm 32 – 42.5 mm50 mm 40 – 51 mm60 mm