Dream, Design, Deliver with our 3M VHB Flame Retardant Tape 5958FR. It is a black, 0.040 in (1.0 mil) modified acrylic adhesive with a very conformable, foam core. The fast and easy to use permanent bonding method provides high strength, long-term durability and is flame retardant. It offers design flexibility with its viscoelasticity and powerful ability to bond to a variety of surfaces.