ADCOTHERM™ PIB 30 is a gray polyisobutylene based sealant that exhibits excellent long term stability and remains permanently flexible, even at low temperatures. ADCOTHERM™ PIB 30 is supplied as a pre-extruded tape (approximately 0.02" x 1.2") roll on release paper or laminated in strips to 4 mil aluminum film backing. Like all ADCOTHERM™ PIB sealants, ADCOTHERM™ PIB 30 exhibits low argon permeability and inherently low moisture vapor transmission along with excellent adhesion to aluminum, stainless steel and tin-plated steel spacer substrates.