3M LOOP TAPES
3M loop tape: choose adhesive and width
Loop tape forms a reclosable fastener with a suitable hook tape. The range includes self-adhesive and adhesive-free versions; the mating part, substrate and service conditions guide your choice.
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Selection criteria
What must the loop tape fasten?
First identify the matching hook tape and how each component will be attached to the part. Adhesive-free 3M SJ3401 can, for example, be sewn on or fixed with a separately selected adhesive. Self-adhesive versions differ in adhesive and use environment: 3M SJ3527N is specified for indoor use, while 3M SJ3571 is specified for indoor and outdoor use. Check the substrate, loading and planned opening cycles against the specific product.
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LOOP TAPE RANGE
3M loop tapes in the range
The filterable listing shows loop tapes assigned to this product category, including adhesive-free and self-adhesive versions. Refer to each product for dimensions, adhesive and use environment.
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CHOOSING THE FASTENER
Choose the loop, hook and substrate together
Loop tape is the soft side of a hook-and-loop fastener; the mating component carries the hooks. The product data names hook tape SJ3526N for 3M SJ3527N and hook tape SJ3572 for 3M SJ3571. Adhesive-free SJ3401 is paired with SJ3402. Check the specified pairing rather than assuming that any components are interchangeable. 3M Dual Lock instead uses interlocking mushroom-shaped heads and is a separate product family.
The method of attaching the tape also differs. Adhesive-free SJ3401 requires sewing or a separately specified bond. SJ3527N uses a synthetic rubber adhesive, while SJ3571 uses an acrylic adhesive. The substrate, indoor or outdoor use, and load are decisive. Krückemeyer GmbH can assess with you whether cut rolls or die-cut parts suit the material, shape and processing method.
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QUESTIONS ABOUT LOOP TAPE
What is the difference between loop tape and hook tape?
Loop tape carries soft loops; the matching hook tape carries small hooks. When pressed together, the two sides form a reclosable fastener. The product pairing matters: the data for 3M loop tape SJ3527N names SJ3526N as its mating part, while SJ3571 is paired with hook tape SJ3572. The method used to attach each side to its substrate must also suit the chosen version. Identify the mating tape and both part surfaces before selecting a fastener for your application.
When is adhesive-free loop tape suitable?
An adhesive-free version is an option when the loop component will be sewn on or attached with a separately selected adhesive. The product catalogue describes 3M SJ3401 as having no adhesive of its own and names textiles and upholstery among its uses. Its attachment must be designed separately from the hook-and-loop closure. A self-adhesive tape such as SJ3527N or SJ3571 addresses a different installation method; its adhesive and the actual substrate still need to be assessed.
How do I choose loop tape for indoor or outdoor use?
Start with the specific product and the substrate. 3M SJ3527N is described for indoor use; 3M SJ3571 is specified for indoor and outdoor use. These descriptions do not establish suitability for every weather exposure or surface. The product data lists a synthetic rubber adhesive for SJ3527N and an acrylic adhesive for SJ3571. Along with the location, check the surface, loading and matching hook component. For outdoor use, compare the actual conditions on the part with the product information.
Is 3M Dual Lock the same as hook-and-loop tape?
No. 3M Dual Lock is a separate family of pressure fasteners with interlocking mushroom-shaped heads. With hook-and-loop tape, hooks engage with the soft loops of the mating component instead. The fastening methods can serve related tasks, but their closure geometry and the choice of matching components differ. A shared catalogue assignment does not make them interchangeable. If holding function, installed height or repeated opening matters, base the choice on the specific product data and your parts.
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Request advice
Describe the mating component, part surface, use environment and planned opening cycles. We will assess a suitable loop tape with you and whether cut rolls or die-cut parts fit your process.
Discuss loop tape for your application
Tell us about the substrate, mating component and required format. We will review the suitable version and possible converting with you.
LOOP TAPE ADVICE
Thomas Klein
Contact for products
Thomas Klein will discuss hook pairing, substrate and delivery format with you.