A 125.0 mil. urethane foam tape featuring A-25 acrylic adhesive on a silicone treated liner used for coding, sealing and identification applications. 4108 is a natural white, firm, high density open cell foam tape with pressure sensitive adhesive on one side. The acrylic adhesive offers high initial quick stick to many types of surfaces, along with excellent shear strength and high temperature performance. The adhesive is protected by the thick, silicone liner. Urethane foam, series 4100, are firm, rigid open-cell tapes that offer excellent cushioning characteristics while allowing air or gas to pass through the open cells. Skip slitting is also used for roll stability on these narrow sizes. Urethane tapes may turn yellow when exposed to light, however, the physical performance is not effected. 4108 tape adheres to a variety of substrates, including latex painted wood, lacquered wood, enameled steel, glass, aluminum, stainless steel, acrylic, ABS and PVC (non-plasticized). The tape adhesion is typically satisfactory within 20 minutes and continues to build with additional time. The solvent/fuel resistant test consists of visual observations of tape bonded to steel panels and immersed totally in solvent/ fuel for 24 hours.