Applicable Base Polymer Properties
Styrene block copolymers (SBCs) offer cohesion, strength, and heat resistance for both pressure sensitive adhesives (PSAs) and non-pressure sensitive adhesives. The styrene phase forms a physically crosslinked network in the adhesive at room temperature. Of the SBCs, styrene butadiene styrene (SBS) has the highest shear strength and moderately good peel strength. Styrene isoprene styrene (SIS) has the highest peel strength although it is cohesively weaker than the SBS resins.