SEAL 'N' FLEX® 1

One Component, Class-A Polyurethane Sealant

One Component, Class-A Polyurethane Sealant

Bostik Seal 'N' Flex® 1 is a low modulus, one component, Class-A polyurethane sealant. When cured it will form a tough and flexible seal capable of cyclic expansion and compression movement of 100% (+ 50%) of the original installed joint width.

Where to Use

  • Internal and external applications
  • Control and expansion joints in facade work 
  • Weather seals 
  • Insitu concrete and render
  • Pre-cast and tilt up panels, brickwork and blockwork

Substrates & Suitable Materials

  • Granite 
  • Sandstone
  • Marble
  • GRC and CFC
  • Fibreglass
  • Plasterboard
  • Concrete
  • Plasterboard
  • Fibre cement sheet
  • Aluminium
  • Low modulus (+/-50% joint movement)
  • Forms a tough and flexible seal
  • Unaffected by normal weathering conditions
  • Retains its original properties even after years of weather and UV exposure
  • Acoustic rated
  • Non-staining
  • Made in Australia 

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