3M Dual Lock Low Profile Reclosable Fastener SJ4575 Black 1 in x 50 yds

Thin reclosable fastener roll

3M SJ4575 Dual Lock Low Profile fasteners replace screws, clips, rivets and hook-and-loop tape where thin, repositionable attachment is needed. The 1-inch by 50-yard roll of black polypropylene carrier carries 300 LSE acrylic adhesive on an 86# polycoated Kraft liner. Makers, exhibit builders and electronics assemblers use it for access panels, graphics, cushions and small device mounting.

50-yard length with 65-mil engaged thickness

The roll provides 50 yards of continuous fastener that is cut into two mating strips for installation. Engaged thickness measures 65 mils, so the bond stays slim behind ceiling tiles, carpet, trade-show graphics, wall panels and E-ZPass tags. Static-load guidance is four square inches per pound; heavier or dynamic loads will exceed the holding capacity of this low-profile design.

300 LSE acrylic adhesive on polypropylene

The 300 LSE adhesive bonds to polypropylene, polyethylene, metal, finished wood and similar low-surface-energy substrates without primers. Surfaces such as silicone, fluoropolymers or oily plastics will not develop full strength. The single-sided mushroom-stem profile means both halves are identical, simplifying inventory but requiring correct alignment during mating.