REX SG 300 N joint rope is a non-combustible joint filler and/or fire protection sealant according to DIN EN 13501-1. It is mainly used in expansion and movement joints in all areas of building construction, civil engineering, tunnel construction and industrial construction. Depending on the design, it prevents the permissible temperatures from being exceeded for 30 to 180 minutes and prevents the passage of fire and flammable gases.
- fire protection for joints tested according to European standard EN 1366-4
- approved for walls from a thickness of ≥ 100 mm and ceilings from a thickness of ≥ 150 mm, each with a bulk density of ≥ 700 kg/m³.
| Fire resistance: | EI 30, EI 60, EI 90, EI 120, EI 180 in walls and ceilings |
| EI 90 -H-X-F-W00 up to 55 (EN 13501) | |
| EI 90 -H-M65 (shear only) -F-W10 up to 50 (EN 13501) (for joint areas with mechanically induced shear stress) | |
| Building material class: | A1 according to EN 13501-1 |
| Joint widths: | up to 55 mm |
e.g.
EI 120-V-X-F-W 10 to 55
or
EI 120-H-M065-F-W 50
| E | Room closure |
| I | Thermal insulation |
| 120 | Fire resistance duration in minutes |
| V | vertical supporting structure (wall joint) |
| H | horizontal supporting structure (ceiling joint) |
| X | Mobility: no movement (max. permissible lateral movement 7.4 %) |
| M | Mobility: maximum permissible movement in %. |
| F | Butt joint created on site |
| W | Range of joint widths from/to in mm |
- tested for joints between structural members both with and without shear loading. In the case of shear movement, the joints may have a shear movement of Delta h = 10 cm = 100 mm.
- tested joint widths for joints without vertical shear stress up to 55 mm.
- tested joint widths for joints with vertical shear stress up to 50 mm.
Combustible joint filler in the joint space not filled by the joint rope may remain in the joint. This means that combustible storage material in the joint only needs to be removed to the extent that space is required for the installation of the SG 300 joint rope.
Additional sealants to protect against dirt, water and destruction do not affect the fire behaviour. Simple assembly without complex tools.
The following specifications apply to joints between structural members, which can be formed as step joints (multi-step joints), linear butt joints (single-step joints) and shear joints (see images).
- for shear joints, the shear movement may be up to 10 cm.
- the maximum lateral elongation capacity of the joint cord is 7.4%.
- the joint seals are to be inserted between two parallel joint flanks. Deviations from parallelism are permissible if the largest joint gap dimension does not exceed the maximum permissible value of the joint width.
- the arrangement of the joint rope can generally be freely selected.
- if the joint ropes are arranged in several layers, the joints must be staggered by 500 mm.
- if joint ropes are butted, in joints with a width of w ≤ 30 mm, the butted joint ropes must have an overlap of at least 100 mm.
- in joints with a width of w > 30 mm, the joint ropes can be butted at the joints.
- additional permanently elastic sealing of the joint with sealants or joint cover profiles is permissible!
- combustible filling material or joint fillings do not have to be removed!
- glueing in the joint rope with Litaflex adhesive 800 is permitted!
- the dimensioning, as well as the number of layers of the joint rope to be installed, can be determined from Tables 1 and 2 depending on the required fire resistance class and the joint widths:
Joints without vertical shear stress
| Installation case | Joint width mm | Quantity | Layers and arrangement | Classification fire resistance |
| (A) (B) | 10 up to 55 | 1 | any | EI 90-V-X-F-W 10 up to 55 EI 90-H-X-F-W 10 up to 55 |
| (A) (B) | 10 bis 55 | 2 | Layers next to each other without spacing, .Arangement within the joint arbitrary. | EI 120-V-X-F-W 10 up to 55 EI 120-H-X-F-W 10 up to 55 |
| (A) (B) | 10 up to 27 27 up to 55 | 4 3 | EI 180-V-X-F-W 10 up to 55 EI 180-H-X-F-W 10 up to 55 |
Overview of fire-resistant versions for installation in ≥ 100 mm thick solid walls and ≥ 150 mm thick solid ceilings with a gross density of ≥ 700 kg/m³.
Joints with vertical shear stress
| Installation case | Joint width mm | Quantity | Layers and arrangement | Classification fire resistance |
| (A) (C) | 10 up to 50 | 2 | 1 layer on both sides, distance á ≥ 25 mm to the outer edge of the component | EI 90-H-M 65-F-W 10 up to 50 |
Overview of fire-resistant versions for installation in ≥ 150 mm thick solid walls and ≥ 150 mm thick solid ceilings with an apparent density of ≥ 2400 kg/m³ ± 20 %.
- for the definition of the installation cases, please refer to the brochure on page 3.
-
PREVENTS UP TO180 minFIRE PASSAGE
-
UP TO55 mmJOINT WIDTH
-
FROM100 mmWALL THICKNESS
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