LGS
Siderise LGS Linear Gap Seals are flexible, water-resistant, intumescent linear gap seals that expand when exposed to heat. They provide a versatile means of sealing junctions between building elements against fire penetration. They are maintenance-free and resistant to fungi and vermin.
The compressible foam core accommodates different joint widths to allow for structural movement whilst providing fire resistance.
Standard sizes are available to suit voids up to 20mm and provides 2 hours fire resistance (Integrity only).
Siderise LGS Linear Gap Seals are made from an open-cell flame retardant acoustic foam laminate with a graphite intumescent coating containing binders which ensure material flexibility.
In fire conditions, the seal maintains a close-fitting position to prevent the passage of cold smoke. At the designed temperature, the intumescent coating begins to expand on the fire side of the joint.
During this reaction, the foam gradually compresses and is replaced by the expanding mass of intumescent graphite.
The seal retains its flexibility on the non-fire side to accommodate any heat-induced movement of the structural elements. Thus the fire is prevented from penetrating rapidly into the joint.
Table 1: Fire Resistance to BS 476-20:1987
| Product Type | Max. Joint Width (mm) | Seal Width (mm) | Seal Depth (mm) | Integrity (E) (mins) |
|---|---|---|---|---|
|
CJ/FS120/012-012 |
10 |
12 |
12 |
120 |
|
CJ/FS120/029-012 |
20 |
29 |
12 |
120 |
Application Technique: Compressed into gap/joint such that the multi-layers/banding are visible.
Siderise LGS Linear Gap Seals are supplied in 1 metre lengths with a width to suit the size of the gap required.
The standard sizes are listed in the Fire Resistance table above. For void sizes other than those tabled please contact the technical team.
- Block/masonry/concrete walls and floors shall be at least 150mm thick and have at least the same fire rating as that of the Linear Gap Seal.
- Block/masonry/concrete gap faces must be within the density range of 450 to 2300kg/m3, and gap faces must be free from loose or flaking material.
Siderise LGS Linear Gap Seals environmental properties:
- Halogen-free
- Individual components may be separated mechanically; however, they are currently not recyclable.
- Please see Safety Data Sheet
The following information is available upon request or via download from the website:
- NBS Specification Clause
- Standard Details
- Safety Data Sheet
For technical advice or support please contact: technical.services@siderise.com
For Installation Training or Site Inspections please contact: site.services@siderise.com
The information in this datasheet is believed to be accurate at the date of publication. Siderise has a policy of continuous product improvement and reserves the right to alter or amend the specifications of products without prior notice. Siderise does not accept responsibility for the consequences of using the products described outside of the recommendations within this datasheet. Expert advice should be sought where there is any doubt about the correct specification or installation of Siderise products.