Datasheet
3
Dual Lock
™
Low Profile
Reclosable Fasteners
SJ4570 Clear
SJ4575 Black
Product Description
3M™ Dual Lock™ Low Profile Reclosable Fasteners SJ4570 and SJ4575 can
replace conventional fasteners, such as screws, clips, rivets, snaps, hook and loop
and bolts in many applications where access or repositioning is needed. Dual Lock
low profile reclosable fasteners consist of continuous strips of plastic backing, with
tiny plastic mushroom shaped stems protruding up from the backing strip. When
two pieces of 3M™ Dual Lock™ Low Profile Reclosable Fasteners are pressed
together, the “mushroom heads” interlock with one another creating an audible
snap, indicating the fastener is engaged. The Dual Lock low profile reclosable
fastener is thinner allowing it to be more flexible than similar reclosable fasteners.
The Dual Lock low profile reclosable fastener SJ4570 is a clear fastener offering
transparent properties to allow color and patterns to visibly show through giving the
fastener an almost invisible appearance. The Dual Lock low profile reclosable
fastener SJ4575 is black in color and gives a definite presence for when you want to
see your fastener or have it blend in with a dark background. The Dual Lock low
profile reclosable fasteners offer intermediate strength between regular 3M™ Dual
Lock™ and 3M™ Scotchmate™ Reclosable Fasteners, with all of the advantages of
a self-mating product.
Technical Data September, 2007
Product 3M™ Dual Lock™ Low Profile Reclosable Fastener
SJ4570 SJ4575
Material of Construction: Polypropylene
Backing Color: Clear Black
Adhesive: Color: Clear
Type: 300 LSE (Acrylic)
Liner Type: 6.5 mil 86# Polycoated Kraft
Product Construction
Weight, ounce/1 in.
2
(grams/cm
2
): 0.012 (0.044)
Operating Temperature Range: -20°F (29°C) and up to 158°F (70°C)
Inch (mm) ± 15% without Liner:
Single Thickness .0645 (1.63)
Engaged Thickness .0910 (2.31)
Plasticizer Resistance: No
Closure Cycle Life: 100 - 150
• Cycle Life is the number of cycles (openings and closings) that the fastener is subjected to
while maintaining ≥ 50% of the original values for tensile.
Typical Physical
Properties and
Performance
Characteristics
Note: The following technical information and data should be considered representative
or typical only and should not be used for specification purposes.