Arbo – Arbosil 1071 – Fire Resisting Silicone Sealant

Arbosil 1070 – 380ml

Arbosil 1071 by Arbo is a one part Low Modulus Fire Resisting and Acoustic Silicone Sealant which cures on exposure to moisture vapour to form a very elastic silicone rubber.

Arbosil 1071 has good adhesion to concrete, brickwork, metals and many other common construction substrates. Recommended for the sealing of expansion joints and other details in walls or screens to prevent the passage of fire. Recommended for use in sports stadiums where a fire seal is required. Fire resistance of 4 hours has been independently verified.

Application Instructions

Joint preparation: The joint surfaces must be clean, dry and free from all contamination. The surfaces should be degreased using the appropriate Arbo Cleaner. Primers may be required on some substrates. It is recommended that Adshead Ratcliffe Technical Services Department should be consulted and advice obtained with regard to the choice of primer for specific purposes.

Joint Backing: Where applicable, appropriate joint filler e.g. mineral wool or closed cell polyethylene foam, should be used to provide the correct joint depth (see chart for joint dimensions required for fire integrity and insulation values).

Application: All joint preparation, priming, and sealant application should be carried out in accordance with BS 8000 Part 16, the British Standard for the sealing of joints in buildings using sealants. Arbosil 1071 is supplied in polyethylene 380ml cartridges and can be applied into the joint using an Arbo Caulking Gun Joint Size Suitability Joint Width Minimum 6mm Maximum 25mm (single application); for advice on multiple applications please contact Adshead Ratcliffe Technical Services Department. Joint Depth Minimum 10mm on porous substrates Minimum 6mm on non-porous substrates Maximum 25mm Width: Depth ratio (within above min/max restrictions)

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