3M(TM) Vent Tape 3294 Pink, 5.0 mil (0.13 mm) air permeable, non-woven backing with an acrylic adhesive that is strip-coated so uncoated areas have higher permeability to help minimize foaming voids 3M(TM) Vent Tape 3294, use in various venting applications requiring high outgassing rates, allow confinement and outgassing of foam insulation