Original Size:  25.4mm ×45.72m/roll(1inch ×50yards/roll)

                           50.8mm ×45.72m/roll(2inch ×50yards/roll) 

We can cut it into the size or shape according to your request. 

3M Scotch SJ3551 Dual Lock 400 Reclosable Fastener is a general-purpose black reclosable fastener with 400 

stems per square inch, an engaged thickness of 0.23 inches and a closure life of 1,000. This black fastener has 

mushroom-shaped stems on a polypropylene carrier which is coated with a white, general-purpose acrylic 

pressure-sensitive adhesive.

Type 400 stem density fasteners can mate to type 170, 250 or 400 fasteners (the higher the combined number 

the greater the closure strength). Mushroom-shaped stems on one side of the fastener interlock with identically 

shaped stems on the other side for 5X greater closure strength than hook and loop.

Dual lock type 400 fasteners are designed to bond to metals, glass, and medium-to-high surface energy plastics 

and paint. They can replace conventional fasteners such as screws, clips, rivets, snaps, hook and loop and bolts 

in many applications where access or repositioning is needed.

Carrier/Backing: polypropylene. Adhesive: acrylic (300 LSE). Release Liner: clear polyolefin film. 

Thickness: 140 mils (carrier, adhesive) 4 mils (liner). Service/Operating Temperature: up to 200F.