Dream, design, deliver with 3M™ VHB™ Tape 4991. It is a grey, 90 mil (2.3 mm), multi-purpose acrylic adhesive with a conformable, foam core. It can replace rivets, welds, and screws. The fast and easy to use permanent bonding method provides high strength and long-term durability. It offers design flexibility with its viscoelasticity and powerful ability to bond to a variety of surfaces. Features: FAST AND EASY-TO-USE: A permanent bonding method that provides immediate handling strength; no need to fixture or wait for a cure; SMOOTH AND SEAMLESS: With a thickness of 90 mil (2.3 mm), this tape is designed as an alternative to mechanical fasteners, such as rivets, welds, and screws, or liquid adhesives; BUILT TO PERFORM: Delivers excellent shear strength, conformability, and surface adhesion thanks to an acrylic foam core and multi-purpose adhesive; DURABLE: Offers excellent outdoor durability and performance, resisting both high and low temperatures, as well as moisture; MULTI-SURFACE: Intended to adhere to a variety of High Surface Energy (HSE) and Medium Surface Energy (MSE) substrates; these may include aluminum, stainless steel, galvanized steel, acrylic, polycarbonate, and ABS; A VERSATILE OPTION: Commonly used in applications across a variety of markets, such as transportation, appliance, electronics, construction, sign and display, and general industrial