Verified by manufacturer 2 months ago
Elastic, single-component, low modulus polyurethane sealant.
Designed for civil and industrial movement, expansion, control and dilatation joints in architectural and heavy construction. To be used as a sealant between concrete, mortar, brickwork, natural and synthetic stone, metal, steel, aluminium, wood, ceramic tiles, rigid plastics, etc.
A highly elastic, low modulus polyurethane sealant, with good UV-resistance and excellent adhesion to typical construction materials.
It is single-component and cures with moisture to form a flexible sealant which can be overpainted after curing is finished. The sealant is non sagging, highly thixotropic, easy smoothing and has good workability. CE marked.
Porous (absorbing) surfaces such as concrete, mortar, etc. must be primed with Köster PU Primer 110. Köster PU Primer 120 should be used for non-porous (non-absorbing) surfaces such as glazed tiles, rigid plastics and aluminium.
Material | Polyurethane |
Warranty description | Ten year |
Uniclass | |
CAWS | E40/530 Sealant |
Third party certification | CE marked. |
Material | One part polyurethane. |
Consumption (per layer applied) | 1.3 kg/L. Guidance for specification option: Void (approximate). |
Viscosity | Manufacturer guidanceNon sag. |
Specific gravity | 1.32 g/cm³. Guidance for specification option: Approximate. |
Curing time | Manufacturer guidance2 mm after 24 hours (at +25°C, 50% RH). |
Shore A hardness | 25. Guidance for specification option: Approximate. |
Elongation at break | 600%. Guidance for specification option: Approximate. |
E modulus | 0.22 MPa. |
Deformation capability | 85%. Guidance for specification option: Recovery from deformation. |
Shrinkage | 5%. |
Joint movement | ±25%. Guidance for specification option: Admissible joint movement. |
Temperature resistance | -30 to +80°C. |
Contains Red List materials | No |
Recyclability | No |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |