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Application

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.

Description

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.

General information

Material

Polyurethane

Warranty description

Ten year

Uniclass

Pr_30_31_76_65 Polyurethane (PUR) construction joint sealantsPrimary

CAWS

E40/530 Sealant

Specification data - Polyurethane (PUR) construction joint sealants

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 guidance

Non sag.

Specific gravity

1.32 g/cm³.

Guidance for specification option:

Approximate.

Curing time

-

Manufacturer guidance

2 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.

Sustainability data

Contains Red List materials

No

Recyclability

No

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

Literature

KÖSTER The Green Pages of Construction Chemicals

KÖSTER The Green Pages of Construction Chemicals

Delta Detailing Brochure

Delta Detailing Brochure