White Butyl Sealant Tape


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SKU: FL311.5 Flowstrip


White Butyl Sealant Tape

This White Butyl Tape is a high performance, rubber based butyl strip sealant. It is a solvent free cross-linked butyl rubber extruded into a strip on a removable paper liner. Bonds well to most building materials, including plastics, forming a non-hardening, permanently flexible joint which is extremely durable. Has good resistance to UV light as well as dilute acids and alkalis, and is non-toxic. This white butyl tape is suitable for use as an adhesive/sealant for compression joints even where vibration is experienced, and for non-load bearing bonding.

Applications include:-

  • BUILDING – Bonding plastic bath splash trim, joinery insulated sheeting to timber, moisture vapour check on T-bars of suspended ceilings.
  • ROOFING & CLADDING – Joining single skin roof lights, high performance roof sealing. Can also use FL311 as white sealant for some FL310 applications if required.


  • Air, dust & water seals in automotive & construction industry.
  • Bedding of trims, mouldings, windows & door frames in caravans & portable buildings.
  • Joining vapour barrier membranes, pond liners and DPCs.
  • OEM applications.
  • For use where a strong jointing sealant is required which offers excellent bonding characteristics.

Features & Benefits:

  • Unrivalled performance across a wide range of industrial and specialist construction applications.
  • Excellent track record of proven performance
  • Very low moisture vapour transmission rate - good for vapour barrier sealing.
  • Outstanding service life
  • Very good adhesion to a wide range of substrates