FulaSeal Pro 840NS Non-Skinning Mastic

FulaSeal PRO™ 840 NS is a non-skinning and non-corrosive polybutene based sealant, designed specifically for small joints in cool room installation. FulaSeal PRO™ 840 NS is also suitable for concealed lap joints between plastics, metals and a wide range of common substrates.

Key Benefits

  • Non-skinning/non-hardening mastic
  • Suitable for sealing small joints up to 3mm
  • Excellent barrier to moisture
  • Mould and mildew resistant
  • Strong adhesion to metals and many substrates
  • Safe on polystyrene
  • Excellent slump resistance


  • Sealing of small joints between insulated panels in cool/refrigerated rooms
  • Sealing lap joints between plastics, metal, timber, glass, masonry and expanded foam panels

Compatible Substrates

  • Metal inc. coated metals
  • Steel inc. stainless
  • Galvanised steel
  • Aluminium
  • Sandwich Panels
  • Alucobond
  • Zincalume
  • Plastics (pre-test)
  • Polystyrene
  • Fibreglass
  • Timber

Packaging Options

  • 460g Cartridge


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