Verified by manufacturer 5 days ago
ISO 9001 Quality Management
Certificate type
A strong and highly elastic material for ensuring a permanent waterproof seal to expansion joints in construction.
For further information please contact the Koster Technical team at technical@kosteruk.com.
A joint waterproofing system for movement and expansion joints in a variety of substrate types.
Koster`s range of FS Joint Sealants are polysulphide-based elastic materials that are characterized as having excellent resistance to mechanical stresses, UV radiation, ageing and aggressive chemicals. The substrate is primed with the fast curing, transparent, solvent free, two component bonding agent - Koster FS Primer 2C. A customary closed cell backing cord is then installed into the joint - to a pre-determined depth - before applying the material. To avoid damage caused by tension stresses, the joint sealant is applied in thicknesses depending on the measurements of the joint.
The system is available in black and grey.
System components:
Color | Black Grey |
Finish | Smooth |
Material | Polysulphide |
Shape | Formless |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year |
Uniclass | |
CAWS | E40/530 Sealant |
Product range |
Standard | To EN 14188-2. |
Sealant type | KÖSTER Joint Sealant FS-V and KÖSTER Joint Sealant FS-H, two-part polysulfide. |
Colour | Black.Grey. |
Fire performance | |
Fire resistance | Resitance to flames: Passed. |
Primer | KÖSTER FS Primer 2C. |
Integral accessories | KÖSTER Universal Cleaner. |
Backing | Foam PE backing rod. Quartz sand. |
Contains Red List materials | No |
Country of material origin | Germany |
Country of product manufacture | Germany |
Manufacturing plant location | |
Material | Polysulphide |
Recyclability | Not Recyclable |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
Expected Life | Ten year |