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  • Conlex Butyl Tape
  • Conlex Butyl Tape

Conlex Butyl Tape - Airtight Sealing Tape

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(incl VAT) £38.99 £35.68
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(excl VAT) £29.73
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Estimated Delivery Date Jun 16, 2026 - Jun 17, 2026
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Conlex Butyl Tape is a high-performance, self-adhesive sealing tape designed to provide permanent air and watertight seals in demanding construction environments. Engineered by Partel, this tape features a specialised butyl rubber compound combined with a high-tack acrylic adhesive side, ensuring strong adhesion to a vast range of surfaces.

Whether you are working with vapour control layers, external membranes for roof structures, or complex timber frames, Conlex Butyl Tape is ideal for creating a perfectly sealed construction. Its unmatched flexibility allows it to adhere to irregular shapes and geometric junctions, making it an extremely versatile tool for modern building envelopes.

Key Features

  • Exceptional Adhesion: This adhesive tape features a high-performance tack that bonds to timber, masonry, OSB, PVC, aluminium, and plaster.
  • Temperature Resistant: Built to withstand extreme temperatures, performing reliably from -30°C to 90°C.
  • Unmatched Flexibility: The high elasticity and tensile strength allow the tape to bridge a joint or wrap around a pipe or sill without cracking.
  • Double Protection: It provides both airtight and watertight properties, protecting the structure from damp, mould, and moisture penetration.
  • Durable & UV Resistant: Designed for longevity, this durable tape is UV resistant and remains breathable when used with compatible Partel membranes.

Applications

Partel Conlex Butyl is a versatile and effective solution for both internal and external use. It is specifically designed for:

  • Parapets & sills: Creates permanent air and watertight seals.

  • Irregular shapes: Flexes around complex corners and geometric edges.

  • Counter battens: The 50mm tape hermetically seals battens to roof membranes.
  • Partel membranes: Pairs with all Partel interior and exterior membranes.
  • Other membranes: Bonds to standard construction PE, PA, PP, and aluminium foils.
  • Rigid substrates: Adheres to timber, OSB, plaster, masonry, concrete, PVC, and metal
  • Excellent compatibility and Extreme flexible for both internal and external use.
  • Butyl tape creates a permanent air and watertight seal at parapets and sills, and can also be used for joining various materials
  • Suitable for sealing of edges, corners and other geometric, irregular shapes that require greater flexibility of the adhesive tape
  • Strong adhesion and high shear strength
  • Butyl rubber base tape with high tack
Product Type  Butyl Tape
Product Code  Conlex Butyl Tape
Brand  Partel
Length  10m, 20m
Width  50mm, 150mm, 200mm, 300mm
UV Tested  3 Months
Water Vapour Resistance  W1
Colour  Grey
Thickness  3mm
Temperature Range -30°C to 90°C

 

Delivery Terms
Order Value (Excluding VAT)  Delivery Condition
Orders below £620  £35 
Orders between  £620-  £1230  £30
Orders between  £1231-  £2460  £28
Orders Above £2460  Free Delivery

Cancellations, Returns And Refunds:

  • You are free to cancel your order before we send you an order confirmation email with an estimated delivery date, and get a full refund
  • Once the order is confirmed and an estimated delivery date is issued via email, Orders cannot be cancelled. 
  • Incorrectly ordered doods can be returned within 14 days of delivery at our discretion. The customer is responsible for ensuring the goods are returned back to the address provided, in good condition where they will be inspected prior to processing any refunds. Restocking fee may be applied
  • For incorrect, damaged or faulty products, please contact us immediately after you receive delivery and we will assist accordingly.

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Delivery Terms
Order Value (Excluding VAT)  Delivery Condition
Orders below £620  £35 
Orders between  £620-  £1230  £30
Orders between  £1231-  £2460  £28
Orders Above £2460  Free Delivery

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