The material selection platform
Adhesives Ingredients
The material selection platform
Adhesives Ingredients
Sealants Channel


The main difference between adhesives and sealants is that sealants typically have lower strength and higher elongation than do adhesives. The main objective of a sealant is to seal assemblies and joints. They adhere to the substrates and resist environmental conditions to remain bonded over the required life of the assembly. Sealants contain inert filler material and are formulated with an elastomer to give the required flexibility and elongation. They usually have a paste consistency to allow filling of gaps between substrates.

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Edward M. Petrie

Friday Dec 3, 2021

By Edward M. Petrie

Go beyond traditional PUR-based reactive hot melt adhesives to match today’s performance requirements (increased shelf life, pot life; difficult to bond substrates, a wider range of service...

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