NuSil Technology (Carpinteria, CA) has introduced two transdermal adhesives. The DDR-1370 is a one-part, non-curing, traditional pressure sensitive adhesive (PSA) dispersed in ethyl acetate. It has a typical viscosity of 1,450 cP, and once coated onto a substrate, can be die cut into various shapes. It offers high cohesive strength and high release force, resulting in favorable temporary adhesive properties. DDR-4355 is a transparent, silicone tacky gel with a typical viscosity of about 15,000 cP. It cures at low temperatures to a soft, high-surface-tack, temporary silicone adhesive. Both the PSA and gel can be applied using coating processes, but represent two different options when selecting a temporary, transdermal adhesive.