3M
™
Dual Lock
™
Reclosable Fasteners for Transportation Industry
Selection Guide
- 3 -
Attachment Options
3M™ Dual Lock™ Reclosable Fasteners Plain Back/Pressure-Sensitive/Non-Woven Backed
All available in 50 yard rolls except as noted, up to 4 in. (101.6 mm) wide.
Plain Back Dual Lock reclosable fasteners can be attached to surfaces by sewing, stapling, ultrasonically fusing to many polypropylene
materials or use of liquid adhesives which bond polypropylene.
Pressure-Sensitive Dual Lock reclosable fasteners utilize 3M™ High Performance Acrylic Foam Tapes, which adhere to most
automotive surfaces such as painted steel, aluminum, stainless steel and ABS. On some surfaces, primers may be required.
Non-Woven Backed Dual Lock reclosable fasteners utilizes a polyolefin non-woven loop backing to facilitate attachment with hot melt
or liquid adhesives to substrates.
Recommended combinations, listed in order of increasing strength: 170 to 250, 170 to 400, 250 to 250, 705 to 705, 250 to 400,
Dual Lock to 3M™ Scotchmate™ loop.
Note: Type 170 to 170 and Type 400 to 400 are not recommended combinations.
(Approx. stems/cm
2
)
170 250 400 705
Plain Back SJ3742 SJ3780 SJ3741 – 0.14 (3.7)
Pressure-Sensitive
5 mil Acrylic Foam Tape – – – SJ4570 0.11 (2.7)
15 mil Acrylic Foam Tape – SJ3787 SJ3785 – 0.18 (4.5)
15 mil Acrylic Foam Tape – – – SJ4580 0.13 (3.2)
37 mil Acrylic Foam Tape SJ3752 SJ3781 SJ3751 – 0.21 (5.4)
43 mil Acrylic Foam Tape SJ3244 SJ3245 – – 0.21 (5.4)
47 mil Acrylic Foam Tape – – SJ3777 – –
60 mil Acrylic Foam Tape – – SJ3788 – –
80 mil Acrylic Foam Tape SJ3756
b
SJ3789
b
SJ3757
b
– 0.31 (7.8)
5 mil Adhesive Transfer Tape SJ3773 SJ3782 SJ3774 – 0.16 (4.1)
Non-Woven Backed SJ3754
c
SJ3223
c
SJ3753
c
– 0.24 (6.1)
Rigid Back – SJ3768 SJ3481 – 0.24 (6.1)
SJ3766 0.23 (5.8)
Rigid Back
Rigid Back Dual Lock reclosable fasteners are designed for mechanical attachment (such as riveting) or for sliding into retention brackets.
Identification Dual Lock Reclosable Fastener Products
170 250 400
Slide-In Part SJ3736 SJ3227 SJ3228, SJ3237,
SJ3737 SJ3229 SJ3717, SJ3750
Round Part with center hole SJ3712 SJ3251 SJ3234, SJ3235,
SJ3263 SJ3463, SJ3465,
SJ3755 SJ3759, SJ3762,
SJ3763, SJ3765
with no center hole – SJ3238 SJ3236
Square Parts with holes – – SJ3252, SJ3261,
SJ3767
Rectangle with hole – – SJ3231
Miscellaneous – – SJ3735
Pop-In Parts
Pop-In parts are designed for insertion into sheet metal or plastic holes and key ways. Other sizes are available.
Plain
Back
Non-Woven
Pressure-Sensitive
Rectangular
Slide-In
Round
Single Disk Stem
Pine Tree
Stem
Rectangular Base
See list of attached products for specific description and sizes.
Identification Dual Lock Reclosable Fastener Products
170 250 400
Square top with pine tree stem – SJ3209 SJ3224
SJ3222 SJ3748, SJ3749
Square top with single disk – SJ3221 SJ3731
Square top with rectangle stem SJ3226 SJ3704 SJ3708, SJ3711,
SJ3719 SJ3713
Square top on round stem – – SJ3715
Twin Rose Bud – – SJ3747
Square top with trapezodial stem – – SJ3709
b
45 yard rolls
c
maximum width is 3 in. (76.2 mm)
Engaged
Thickness
a
mils (mm)
a
All engaged thicknesses are for Type 250 engaged
to Type 250 or Type 705 engaged to Type 705.
