Pro Clima Tescon No.1

Pro Clima Tescon No.1

Flexible multi-purpose airtight adhesive tape.

This product is not available to buy online. Please contact us for pricing and more information.

€ 39.48 EUR
Every effort has been made to ensure the accuracy of our digital colours and textures however due to limitations with technology, we strongly advise purchasing sample products for testing in situ prior to the full order being placed.
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Delivery Information

Unless otherwise specified all products within Ireland should be delivered within 2-3 working days. Please contact us for delivery options outside of Ireland or if you wish to ship to Northern Ireland.

Our stock is primarily shipped by Fastway or via the pallet network depending on the total weight of the order. The delivery method will be automatically assigned and priced at checkout. All delivery prices include VAT.

Main Purpose

To airtight seal membrane overlaps, edges, penetrations and connections to airtight accessories.



Pro Clima Tescon No.1 is a flexible airtight tape for creating long-lasting airtight seals on airtight membranes and windtight breather membranes. It has been tested and proven to provide an airtight seal that lasts 100 years. Tescon No.1 is perfect for sealing overlaps, edges and penetrations as well as connections to most surfaces commonly found on a building site (primer may be required). It can be left exposed to UV and weather for up to 3 months prior to installing the final external finish on the building.

Where to use it:

Tescon No.1 airtight tape will permanently stick to all Pro Clima interior and exterior membranes as well as any other membrane made from PE, PA, PP, PET and aluminium. Also permanently bonds to planed or painted timber, OSB, plywood, MDF, hard plastics and metal.

When used on wood fibre insulation boards (e.g. Steico), concrete, plaster or smooth masonry, Tescon Primer RP or Tescon Sprimer should be used first to ensure good adhesion. If the surface is painted or may come away, detach or delaminate, we recommend doing an adhesion test first.

What it does:

Tescon No.1 is a flexible airtight adhesive tape for airtight sealing membranes and airtight accessories on roofs, walls and floors.

The backing is very flexible and stretchy so it can be applied on curved surfaces or in curved lines without wrinkles. The flexibility is also great for sealing to OSB as the tape can be pressed more easily into the recesses of the non-flat surface texture. Sealing around pipes and cables is also easier with a flexible tape.

Tescon No.1 is 60mm wide; the perfect width for sealing overlaps with the recommended 25-30mm of tape on each surface.

Tescon No.1 uses solid acrylic glue. This type of glue is fully waterproof and unaffected by changes in temperature and humidity. It has high adhesion and excellent cohesion which means the glue stays together, won’t slip and can provide the longest lasting seal possible. Dispersion glue (used on competitor tapes) reacts to moisture causing the bond to break down relatively quickly (within a few months). Tescon No. 1’s solid acrylic glue actually gets stronger over time and is ideal for building projects in Ireland and UK due to it being unaffected by the wet climate and extreme weather conditions.

Use it on:

Internal or external membranes, airtight accessories, timber, concrete, on walls, roofs, floors and ceilings.

Pro Clima provide a limited system warranty, backed-up with public liability insurance, for all airtightness system, roof and wall sealing system and construction products that they supply. A 10-year warranty is provided for these products when correctly installed in combination with approved thermal insulation materials and other Pro Clima system products.  When correctly installed in combination with other manufacturers’ products (not made by Pro Clima), a 6-year warranty is provided.

Ensure all surfaces are dust, grease and silicone free.  Cut a manageable length of tape or put your forearm through the roll to hold it and unroll what you need as you go.  Remove the release paper and place the tape over the centre of the overlapping materials. Firmly press the tape onto the surfaces with a Pressfix Tool.  Using a Pressfix ensures the maximum strength of bond is achieved.

Be careful where you apply the tape, it will not come off.  The tape and its adhesive residue can be removed with Pro Clima Glumex Adhesive Remover.

Tescon No. 1 can be used for repairing items in and around the home.  E.g. bags, suitcases, paddling pools, etc