3M™ Dual Lock™ Reclosable Fastener DL400/468MP is a black polyolefin reclosable fastener with a transparent acrylic pressure sensitive adhesive. It is designed for positive-locking, reclosable attachment in automotive trim applications and supports hidden fastening, clean show surfaces, and simple assembly without special tools. The product is available in DL170, DL250, and DL400 stem density types and has a total unmated thickness of 2.8 mm with a tolerance of +/- 0.35 mm.
Reliable Attachment, Over and Over
Designed with hundreds of interlocking mushroom-shaped stems, this fastener offers strong, fast and easy attachment for automotive assembly applications. This polypropylene reclosable fastener is coated with a clear acrylic adhesive on the back to provide an excellent bond after full adhesion. The interlocking mushroom-shaped heads deliver exceptional tensile strength and can be easily attached and detached multiple times. Featuring temperature, moisture and UV resistance, this reclosable fastener offers reliable durability and is designed to help reduce vibration for satisfying, long-term performance. In addition, this unique fastener secures with an audible snap to help confirm closure verification.
Adhesive Performance
3M™ Adhesive Transfer Tape 468MP provides excellent solvent resistance and shear resistance and exhibits excellent adhesion to metal and high surface energy plastics. This adhesive provides some initial repositionability for placement accuracy when bonding to plastics. It also performs well after exposure to humidity and hot/cold cycles.
An Advanced Closure Alternative
When two pieces of 3M™ Dual Lock™ Reclosable Fasteners are pressed together, the stems flex, allowing the mushroom heads slide past each other and the opposing mushroom heads interlock. These fasteners provide high tensile strength but can be opened by simply cleaving, or peeling open the closure.
Alignment and re-alignment are easy and no special tools are required for installation. This means that Dual Lock fasteners can be used to attach components before they enter the final assembly plant, helping to reduce the number of parts and assembly time.