Hot Melt Pressure Sensitive Adhesives (HMPSAs) have been widely used for making medical pads and tapes in the past couple decades. Prior to introducing HMPSAs to this industry, both calendared and solvent-borne natural rubber (NR) based PSAs dominated this market. NR PSA is normally tackified by rosin or its derivatives. This type of PSA generates very good adhesion to human skin because of its high acidity or polarity.

Beginning in 1990, HMPSA and Acrylic water-borne PSA were introduced to skin contact applications. Disregarding those common adhesion performances, three major requirements must be met for medical pad and tape applications… Read Article>>

Skin Contact Hot Melt Pressure Sensitive Adhesives
- by Pierce Covert, Glue Machinery Corporation