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ARBO Arbosil 1070 Fire Resistant Silicone Sealant

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High quality ARBO Arbosil 1070 Fire Resistant Silicone Sealant products

What is ARBO Arbosil 1070 Fire Resistant Silicone Sealant?


Arbosil 1070 is a one-part, low modulus fire-resisting silicone sealant that cures on exposure to moisture vapour, forming a highly elastic silicone rubber. With excellent adhesion to concrete and other common construction substrates, Arbosil 1070 is designed to meet the stringent requirements of modern construction projects.

Application and Key Benefits of Arbosil 1070: Arbosil 1070 is ideal for sealing movement joints and other critical details to prevent the passage of fire.

Note: Not recommended for use in floor joints unless specifically approved by ARBO Technical Services.

  • Fire Resistance: Independently verified to provide up to 4 hours of fire resistance.*

  • Excellent Elasticity: Ensures durability and flexibility in various joint movements.

  • Substrate Compatibility: Adheres well to concrete and other common construction materials.

  • UV Resistance: Offers very good resistance to UV degradation.

  • Long Service Life: Expected service life of over 25 years.


*Consult ARBO Technical Services for full details.
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Frequently Asked Questions About ARBO Arbosil 1070 Fire Resistant Silicone Sealant

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Our last working day of the year is Tuesday 23rd December. Final orders for delivery before Christmas should be placed by 2pm on Friday 19th December. Our trade counters in Tonbridge and Leeds will also remain open for collections on 23rd December. Both branches will reopen in the New Year on Friday 2nd January 2026.