Mastic Sealant for sealing Cold Room


ALSEAL Mastic Sealant is a one-component, non-drying, polybutene rubber based mastic that does not harden but remains permanently soft. It has excellent resistance to water vapour transmission.

Well-suited for sealing cold room and other pre-fabricated construction applications. Ideal for sealing most plastics, metals, glass, masonry, and wood.


  • Moisture resistant
  • Non-skinning
  • Excellent adhesion

Available colour: White

Product codeContentCarton Quantaty
AS-4000300 ml24/ Carton