Dow Corning announces Silicone PSAs with solvent-based Silicone PSA performance properties

06-Jun-2003

Advances in silicone-based raw materials have made it possible to formulate solventless Silicone pressure sensitive adhesives (PSAs) with the tack, adhesion and high-temperature shear performance of common solvent-based silicone PSAs.

Silicone PSAs have been used for many years in applications where typical organic PSAs have failed, and a wide variety of silicone PSAs are available today. However, all of them are composed of 50 to 60 percent silicone solids in an organic carrier solvent.

While many organic PSAs have found alternative delivery systems (such as emulsion or hot melt), past attempts to make solventless silicone PSAs were not commercially successful. Many of these early materials had the tack and adhesion typical of a silicone PSA, but they lacked the high-temperature shear performance many industrial PSA applications require.

Dow Corning has developed prototype solventless silicone PSA formulations that have overcome this drawback.

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