Other 3M® Dual Lock Reclosable Fasteners

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3M® dual lock heavy duty self adhesive & non adhesive recloseable fasteners are used by sign makers, exhibition & display companies, shop fitters, the transportation industry and hundreds of other industries when superior performance is essential

Dual Lock is a recloseable fastener which has hundreds of tiny mushrooms which interlock with each other when pushed together to form a strong bond, yet can be pulled apart and re-closed many times

There are 3 stem densities; 170 Stems Per Square Inch (SPI), 250 SPI and 400 SPI to give different disengagement strengths

Please note: SJ 4570 only mates to itself and we do not recommend SJ 3552 to be mated to itself

3M Dual Lock is available in;

25mm Self-Adhesive Squares which mate to themselves

25mm Dia. Non-Adhesive Circles which mate to themselves

25mm x 5m Self-Adhesive Twin Packs which mate to themselves

25mm x 45.7m Self-Adhesive & Non-Adhesive Single Rolls

Each single roll will either mate to itself or to another 3M Dual Lock type to give different disengagment strengths

Product Selection Guide

Type: SJ4570 Low Profile
Stems Per Sq Inch: 250
Adhesive: High Performance Acrylic
Disengagement Strength: Medium/High (only mates to itself)
Colour: Clear Size: 25mm x 45.7m

Standard Rolls (45.7m)

Type: SJ3440
Stems Per Sq Inch: 250
Adhesive: None
Disengagement Strength: Medium
Colour: Black Size: 25mm x 45.7m

Type: SJ3540
Stems Per Sq Inch: 250
Adhesive: Rubber (general purpose)
Disengagement Strength: Medium/High Colour: Black
Size: 25mm x 45.7m

Type: SJ3541
Stems Per Sq Inch: 400
Adhesive: Rubber (general purpose)
Disengagement Strength: Medium/High
Colour: Black
Size: 25mm x 45.7m

Type: SJ3542
Stems Per Sq Inch: 170
Adhesive: Rubber (general purpose)
Disengagement Strength: Low (will not mate to itself)
Colour: Black
Size: 25mm x 45.7m

Type: SJ3550
Stems Per Sq Inch: 250
Adhesive: VHB Acrylic (high performance Very High Bond)
Disengagement Strength: Medium/High
Colour: Black
Size: 25mm x 45.7m

Type: SJ3551
Stems Per Sq Inch: 400
Adhesive: VHB Acrylic (high performance Very High Bond)
Disengagement Strength: Very High
Colour: Black
Size: 25mm x 45.7m

Type: SJ3552
Stems Per Sq Inch: 170
Adhesive: VHB Acrylic (high performance Very High Bond) Disengagement
Strength: Low (will not mate to itself)
Colour: Black
Size: 25mm x 45.7m

Type: SJ3560
Stems Per Sq Inch: 250
Adhesive: VHB Acrylic (high performance Very High Bond)
Disengagement Strength: Medium/High
Colour: Clear
Size: 25mm x 45.7m

Twin Packs (2 x 5m)

Type: SJ354D
Stems Per Sq Inch: 250
Adhesive: Rubber (general purpose)
Disengagement Strength: Medium
Colour: Black
Size: 2 x 25mm x 5m SJ3540

Type: SJ355D
Stems Per Sq Inch: 250
Adhesive: VHB Acrylic (high performance Very High Bond)
Disengagement Strength: Medium
Colour: Black
Size: 2 x 25mm x 5m SJ3550

Type: SJ356D
Stems Per Sq Inch: 250
Adhesive: VHB Acrylic (high performance Very High Bond)
Disengagement Strength: Medium
Colour: Clear
Size: 2 x 25mm x 5m SJ3560

Type: SJ355T
Stems Per Sq Inch: 400
Adhesive: VHB Acrylic (high performance Very High Bond)
Disengagement Strength: Very High
Colour: Black
Size: 2 x 25mm x 5m

Type: SJ457D
Stems Per Sq Inch: 250
Adhesive: High Performance Acrylic Adhesive
Disengagement Strength: Medium/High (only mates to itself)
Colour: Clear
Size: 2 x 25mm x 5m

Squares (25mm)

Type: SJ354X
Stems Per Sq Inch: 250 + 250
Adhesive: Rubber (general purpose)
Disengagement Strength: Medium
Colour: Black
Size: 300 x 1" sq. SJ3540

Type: SJ355X
Stems Per Sq Inch: 400 + 170
Adhesive: VHB Acrylic (Very High Bond)
Disengagement Strength: Low
Colour: Black
Size: 250 x 1" sq Each of SJ3551 & SJ3552

Circles (20mm dia.)

Type: SJ3463
Stems Per Sq Inch: 400
Adhesive: None
Disengagement Strength: High
Colour: Black
Size: 1000 x 20mm pieces

Type: SJ346P
Stems Per Sq Inch: 400
Adhesive: None
Disengagement Strength: High
Colour: Black
Stems Per Sq Inch: 250 x 20mm pieces

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