ISO 9001 : 2015 Approved

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UK Converters & Distributors of Technical Adhesive Tapes, Foams, Films & Membranes

ISO Bloco One

3-in-1 Sealing Solution for 100% Joint Air-Tightness
Window and Door Frames

Iso Bloco One by Iso Chemie

Iso Bloco One DistributorWhere three products used to be required, one is now enough: ISO-BLOCO ONE.


The multi-functional joint sealing tape with outstanding three-level functionality is 100 % air tight and vapour-resistant on the inside, provides thermal and sound insulation in the centre and more than 1,000 Pa resistance to driving rain on the outside.

BBA Approved - All Sizes Stocked

  • Tested according to RAL requirement DIN 18542 BG 1 / BG 2 and BG R
  • High level of functional reliability thanks to tested resistance to driving rain of more than 1,000 Pa
  • Enormous reduction in heat loss by convection thanks to an a-value of zero
  • Absolute airtightness saves up to 200 l heating oil per year
  • Optimum drying effect for efficient mould protection 
  • 3-level seal in only one working step saves on both time and costs
  • Certified Passive House component
  • Can be fitted in any weather
  • Complies with EnEV requirements and the RAL window installation principles
  • 10 Year Function Warranty*