3M™ Double Coated Tape 444 features our 3M™ Adhesive 300, a medium-firm acrylic adhesive ideal for joining materials that are smooth, thin and have low residual stress. It is excellent for foams and LSE plastics such as polyethylene, as well as HSE plastics. Adhesive is applied to both sides of a 0.5 mil PET film which adds structural stability. This tape features a 55# densified kraft liner. - The high tack adhesive provides relatively high initial adhesion and good shear holding power to a variety of surfaces. Aggressively bonds to many surfaces, including plastics like polyethylenes.