• RELIABLE PERFORMANCE: Strong, interlocking mushroom-shaped heads connect with an audible "snap".
• QUICK AND EASY TO INSTALL: Adhesive sticks on contact to a variety of materials without special tools. Suitable for indoor and outdoor use.
• DESIGN FLEXIBILITY: Lightweight and low profile; Fastener is hidden beneath the surface and does not interfere with the integrity of the design.
• CUSTOMIZE FOR YOUR APPLICATION: Mix and match stem densities for the ideal closure strength.
• BONDS TO A VAREITY OF SUBSTRATES: Metals, glass and plastics (such as acrylics, polycarbonate and ABS). Try mating different combinations of Type 170, Type 250 or Type 400 to achieve the desired strength profile.

Product Description ------------------- Unlock simplicity, super strength and ultimate ease. The remarkable 3M Dual Lock Reclosable Fastener can be opened and closed up to 1,000 times before losing 50% of its original strength, for repeated access or repositioning. The mushroom heads easily slide over each other allowing positioning of parts before they are snapped together to create a firm fastening attachment. When mated, the fasteners are hidden from view and leave you with an unbroken surface for a smooth, clean appearance. From the Manufacturer --------------------- Strength in Numbers One little mushroom won't accomplish much in this world, but pair him up with a few hundred of his friends and he becomes nearly unstoppable. Teamwork, that's the idea behind the design on the 3M Dual Lock Reclosable Fastener TB3550. When joined together, these unique, mushroom-shaped stems combine to interlock with one another, generating five times the closure strength of typical hook and loop fasteners while maintaining the ability to easily peel-apart for quick access. 3M Dual Lock TB3550 Reclosable Fastener contains approximately 250 mushroom-shaped head stems per square inch. When two pieces of Dual Lock are pressed together the stems flex and the mushroom heads slide past each other. After mating, the stem snaps back into its original position, interlocking with the sing heads with an audible snap that signals the fastener is engaged. This system can be opened and closed 1,000 times while maintaining 50% of the original tensile strength. No Drilling, Screwing, Tightening, or Complex Installation 3M Dual Lock TB3550 uses an acrylic adhesive that bonds well to a variety of high medium surface energy materials, including some plastics, metal, glass and painted surfaces. This ensures a quick and easy installation without the use of mechanical attachment processes. The adhesive sticks quickly and reaches full strength after . Once bonded the interlocked, mushroom-shaped stems provide an attachment that holds as well as screws or rivets, yet separates easily for access. Versatile, Durable and Invisible There's no limit to the number of uses for 3M Dual Lock fasteners. The stems, mushroom tops, and film backing are constructed of clear polypropylene, and the polyolefin backing resist common solvents and alkaline solutions, making them ideal for a variety of purposes and environments. The fastener is recommended for use at temperatures ranging from -20°F/-29°C to 200°F/93”C. Hidden from view when attached, these fasteners provide a clean, unbroken surface, and stay strong through more than 1,000 open-close cycles. Dual Lock Reclosable Fasteners are used extensively in transportation, electronics, business equipment, machinery, medical, and sign and display markets. They are ideal for both indoor and outdoor applications including: attaching signs, cushions, enclosure and access panels, banners, doors, adjustable shelving, vehicle ceiling panels, furniture seats and backs, and much more.