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Dual Lock Reclosable Fastener System

Three Types, Each Available in 3 "Strengths"

3M Dual Lock Reclosable Fasteners offer advanced closure alternatives to zippers, screws, snaps, hooks, bolts, and more, on items that require periodic opening and closing.
 
 
The Dual Lock system consists of continuous strips of plastic mushrooms protruding up from a backing which is typically coated with a high strength pressure sensitive adhesive covered with a peel-off liner.
 
When 2 strips are pressed together, the mushroom heads interlock, forming a releasable mechanical bond.
 
 
There are three types of these fasteners 170, 250, and 400 referring to the approximate number of mushrooms per square inch.
 
They can be mated in the following combinations of increasing closure strength Type 170 to Type 250, Type 250 to Type 250, Type 170 to Type 400, and Type 250 to Type 400. (Type 170 will not stick to itself, and Type 400 to Type 400 is essentially a permanent bond.)
 
 
Note that unlike Hook & Loop Fastenings, there is no "male" or "female" side.
 
Both sides are identical; but, as noted above, different types can be mixed.
 
 
No dirt catching fuzz, like hook and loop closure systems
 
Can be opened and closed hundreds of times
 
High strength pressure sensitive adhesive is either general purpose, or specialized for difficult to adhere to plastics
 
Solvent resistant
 
Series with no adhesive backing, and those with acryilic adhesive backing can tolerate temperatures as high as 200F
 
Color in table is fastener color/foam backing color
 
Clear fastener/backing combination allows for substrate color to show through the fastener
 
Engaged thickness is approximately 1/4"
 
 
Series Properties:
 
354x Series is available in all 3 types and has a conformable backing with a black rubber-based low surface energy adhesive - good for difficult to adhere to plastics
 
355x Series is available in all 3 types and has a black high strength general purpose acrylic adhesive - good for textured and high surface energy (adhesive friendly) surfaces
 
356x Series is available in all 3 types and has a clear, very high bond general purpose acrylic adhesive, and has the best UV resistance - good for medium and high surface energy surfaces
 
3223 Series is available in all 3 types (although we list only the Type 250), and has a non-adhesive, non-woven backing for user supplied adhesives. Use it where the normal pressure sensitive adhesive backing on these tapes is inappropriate
Leaves warehouse: Next business day
(if in stock)

Shipping time: see chart

Made to order: No

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Current inventory as of Friday, 8:30 am Pacific time
Item Our SKU
Mfg P/N
Specs Status Price Quantity
Type 400 Dual Lock SJ3551 Fastener with General Purpose Acrylic Adhesive - Black/White, 1 in. x 50 yd
SKU 124180

Mfg p/n 021200-86278
Adhesive: Acrylic 1 - Multipurpose
Closure Life: 1,000 Cycles
Color: Black
Max. Temp.: 200°F
Per Case: 2
Series: Series 3550
Size: 1" x 50 yd
Strength: Type 400
Thickness: 0.22"
Type: SJ3551
Out of Stock$447.40
Type 250 Dual Lock SJ3560 Fastener with General Purpose Acrylic Adhesive - Clear/Clear, 1 in. x 50 yd
SKU 124965

Mfg p/n 021200-86282
Adhesive: Acrylic 1 - Multipurpose
Closure Life: 1,000 Cycles
Color: Clear/Clear
Max. Temp.: 200°F
Per Case:
Series: Series 3560
Size: 1" x 50 yd
Strength: Type 250
Thickness: 0.27"
Type: SJ3560
2 in stock$501.45
Type 400 Dual Lock SJ3541 Fastener with LSE Rubber Adhesive - Black/Black, 1 in. x 50 yd
SKU 175259

Mfg p/n 021200-86277
Adhesive: LSE - Low Surface Energy Rubber Adhesive
Closure Life: 1,000 Cycles
Color: Black/Black
Max. Temp.: 120°F
Per Case:
Series: Series 3540
Size: 1" x 50 yd
Strength: Type 400
Thickness: 0.28"
Type: SJ3541
1 in stock$314.25
Type 250 Dual Lock SJ3550 Fastener with General Purpose Acrylic Adhesive - Black/White, 1 in. x 50 yd
SKU 205341

Mfg p/n 021200-74379
Adhesive: Acrylic 1 - Multipurpose
Closure Life: 1,000 Cycles
Color: Black/White
Max. Temp.: 200°F
Per Case:
Series: Series 3550
Size: 1" x 50 yd
Strength: Type 250
Thickness: 0.27"
Type: SJ3550
Out of Stock$418.80
Type 170 Dual Lock SJ3552 Fastener with General Purpose Acrylic Adhesive - Black/White, 1 in. x 50 yd
SKU 205344

Mfg p/n 021200-86279
Adhesive: Acrylic 1 - Multipurpose
Closure Life: 1,000 Cycles
Color: Black/White
Max. Temp.: 200°F
Per Case:
Series: Series 3550
Size: 1" x 50 yd
Strength: Type 170
Thickness: 0.27"
Type: SJ3552
Out of Stock$447.40
Type 250 Dual Lock SJ3223 Fastener with Non-Adhesive Non-Woven Backing - Black/White, 1 in. x 50 yd
SKU 132577

Mfg p/n 021200-24100
Adhesive: No Adhesive - Plain Non-Woven Backing
Closure Life: 1,000 Cycles
Color: Black/White
Max. Temp.: 200°F
Per Case: 8
Series: ---
Size: 1" x 50 yd
Strength: Type 250
Thickness: 0.28"
Type: SJ3223
Out of Stock$221.76
Type 250 Dual Lock SJ3223 Fastener with Non-Adhesive Non-Woven Backing - Black/White, 2 in. x 50 yd
SKU 195346

Mfg p/n 021200-64269
Adhesive: No Adhesive - Plain Non-Woven Backing
Closure Life: 1,000 Cycles
Color: Black/White
Max. Temp.: 200°F
Per Case:
Series: ---
Size: 2" x 50 yd
Strength: Type 250
Thickness: 0.28"
Type: SJ3223
Out of Stock$355.74
Type 250 Dual Lock SJ3540 Fastener with LSE Rubber Adhesive - Black/Black, 1 in. x 50 yd
SKU 215365

Mfg p/n 021200-65812
Adhesive: LSE - Low Surface Energy Rubber Adhesive
Closure Life: 1,000 Cycles
Color: Black/Black
Max. Temp.: 120°F
Per Case: 2
Series: Series 3540
Size: 1" x 50 yd
Strength: Type 250
Thickness: 0.23"
Type: SJ3540
Out of Stock$298.46
Type 170 Dual Lock SJ3542 Fastener with LSE Rubber Adhesive - Black/Black, 1/2 in. x 50 yd
SKU 149360

Mfg p/n 021200-86347
Adhesive: LSE - Low Surface Energy Rubber Adhesive
Closure Life: 1,000 Cycles
Color: Black/Black
Max. Temp.: 120°F
Per Case: 4
Series: Series 3540
Size: 1/2" x 50 yd
Strength: Type 170
Thickness: 0.23"
Type: SJ3542
Out of Stock$135.42

 
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