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Application

Suitable for perimeter sealing of fire resisting timber, galvanized or polyester powder coated frames, internally or externally.

Description

A fire resistant, silicone sealant.


Features and benefits:

  • In normal service Arbosil 1070 will resist the passage of fire, but will require replacement afterwards.
  • Not recommended for overpainting, for use with laminated glass or against natural stone.
  • Resistant to most alkalis and dilute acids; organic solvents may cause the sealant to swell and loose adhesion, but do not directly dissolve the material.
  • Should not cause migratory staining on porous surfaces, but dirt and dust washed into or around joints by rainwater may cause pattern staining.
  • The sealant itself may discolour in contact with rubbers, bituminous or pitch-based DPCs, etc.
  • Contact with some metals may also cause discolouration.
  • Very good UV resistance.
  • Tested to BS 476-20.
  • Correctly applied, the sealant should not require maintenance, and has an anticipated life in excess of 25 years.
  • Health and safety: Avoid prolonged skin contact. Use of this product should be recorded in the Project Health and Safety Plan.

General information

Color

Black

Grey

Manufacturer guidance

Other colours available to special order. Consult manufacturer and insert requirements.

Material

Silicone

Shape

Formless

Uniclass

Pr_30_31_76_77 Silicone construction joint sealantsPrimary

CAWS

F30/610 Movement joints with sealant

F30/670 Head of non-loadbearing walls

H42/661 Sealant joints

H51/610 Sealant joints

H51/630 Movement joints

L10/70 Fire-resisting frames

L10/790 Fire-resisting frames

L20/820 Sealant joints

P12/390 Sealant

P12/47 Sealant

Product range

Sealants and Facades
Intumescent Sealants

Specification data - Silicone construction joint sealants

Standard

To BS EN ISO 11600.

Class

F-25LM.

Colour

Black.

Guidance for specification option:

As standard.

Grey.

Guidance for specification option:

As standard.

Manufacturer guidance

Other colours available to special order. Consult manufacturer and insert requirements.

Fire performance

Single seal: 4 hours integrity, 30 minutes insulation; Double seal: 4 hours integrity and insulation.

Manufacturer guidance

Refer to technical literature for details of testing and compliance with other standards.

Accessories

None.

Joint backing: Mineral wool.

Primer: Arbo Primer 2650.

Application temperature

+5 to +50°C.

Curing time

7–14 days.

Guidance for specification option:

Depending on joint configuration and atmospheric conditions.

Joint width

6 mm (minimum single application); 25 mm (maximum single application).

Guidance for specification option:

Joint depth:

  • 10 mm (minimum).
  • 25 mm (maximum).


Manufacturer guidance

For multiple applications, contact Adshead Ratcliffe Technical Services Department

Backing

Where applicable, mineral wool should be used to provide the correct joint depth.

Primer

Specify Arbo Primer 2650 for brickwork, concrete and stained timber frames.

Manufacturer guidance

Primers are available to suit other substrates, refer to technical literature for details.

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