Remember that while hot melt adhesives are the more popular, water-based adhesives offer excellent adhesive qualities and service a wide range of temperatures and are more resistant to moisture.

Pressure Sensitive Adhesives PSA vs Contact Adhesives PSA's (Pressure Sensitive Adhesives) are adhesives that stay tacky once dry, and contact adhesives are adhesives that, once coated on both substrates, stick to themselves.

Pressure-sensitive adhesive (PSA, self-adhesive, self-stick adhesive) is a type of nonreactive adhesive which forms a bond when pressure is applied to bond the adhesive with a surface. No solvent, water, or heat is needed to activate the adhesive.

Hot-melt pressure-sensitive adhesives are adhesives on the basis of thermoplastic rubber. These are characterised by the fact that they do not set completely, but remain permanently tacky. For this reason, the designation “PSA – Pressure Sensitive Adhesive” was created for this group of adhesives.