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H.B. Fuller FulaSealPRO™ 840NS Cool Room Mastic • 460g

Product Code:     CRM420

Availability:     In Stock

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FulaSealPRO 840NS is a butyl-based non-sagging, non-skinning gunnable small joint sealant that provides excellent moisture resistance. It has been designed for use in cool room construction, refrigerated container components and other types of insulation panels. It is suitable for applications requiring a non-skinning, durable and permanently plastic sealant.


  • Excellent low temperature properties
  • Non-skinning
  • Will not separate or bleed on non-porous substrates
  • Mould and mildew resistant
  • Non-corrosive
  • Gunnable
  • Non-sagging
  • Excellent adhesion to many substrates


  • Cool room construction and sealing
  • Refrigeration unit construction
  • Insulation panel construction
  • Concealed lap joint applications


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