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Application

Suitable for use in perimeter sealing in curtain walling and polyester powder coated frames, structural joints in brickwork and blockwork, and joints in lightweight cladding.

Description

A one part, low modulus, modified polymer sealant which cures, on exposure to moisture vapour, to form an elastic rubber.


Features and benefits:

  • Not recommended for floor joints.
  • Very good UV resistance.
  • Anticipated service life in excess of 20 years.

General information

Color

Black

Grey

White

Other

Material

Polymer

Rubber

Shape

Formless

Uniclass

Pr_30_31_76_16 Construction joint sealantsPrimary

CAWS

H11/775 Bonding sealants for structural sealant/ bonded glazing

Product range

Modified Polymer Sealants
Sealants and Facades
Silicone Sealants / Non-Staining

Specification data - Construction joint sealants

Standard

To BS EN ISO 11600.

Material

One part modified polymer.

Class

F-20LM.

Colour

Black.

Buff.

Grey.

Limestone.

Portland.

White.

Accessories

None.

Arbo Primer 2650.

Arbo Cleaner No. 16.

Guidance for specification option:

Alcohol Based.

Arbo Cleaner No.17.

Guidance for specification option:

Xylene based, not suitable for use with plastics or delicate finishes.

Application temperature

+5 to +35ºC.

Service temperature

-40 to +90ºC.

Working time

Skin time at 20º C and 65% relative humidity: 30 minutes.

Hardness (shore A)

30.

Cure time

1-2 mm per 24 hours at 20ºC and 65% relative humidity.

UV resistance

Very good.

Anticipated service life

20 years+.

Chemical resistance

Resistant to most dilute acids and alkalis.

Guidance for specification option:

Organic solvents may cause the sealant to swell and lose adhesion.

Compression strength

Butt joints (movement in tension and compression): 70%.

Guidance for specification option:

Must not exceed ± 33% in any one direction.

ShearStrength

Lap joints (movement in shear): 125%

Guidance for specification option:

Must not exceed ± 66% in any one direction.

Modulus at 100% elongation

0.29 N/mm².

Elongation at break

550%.

TensileStrength

0.45 N/mm².

Joint width

6 mm (minimum single application); 25 mm (maximum single application); 35 mm (maximum multiple applications).

Guidance for specification option:

Joint depth:

  • Porous substrates: 10 mm (minimum); 18 mm (maximum).
  • Non-porous substrates: 6 mm (minimum); 18 mm (maximum).

Manufacturer guidance

Width: depth ratio (within above minimum/ maximum restrictions):

  • Butt joints: 2:1.
  • Lap joints: 1:1.