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. Gutex), 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.

How it works 

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.

Why we love it 

Tescon No.1 has been independently tested, by Kassel University, using accelerated ageing to prove the solid acrylic glue will last 100 years. Only Pro Clima have achieved this level of durability for airtight tapes. 

After 24 hours, you will not be able to remove the tape.

System warranty

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.