3M Dual Lock Reclosable Fastener TB3550 250/250 Black, 1 in x 10 ft (1 Mated Strip/Bag)
|Price:||$36.25 & FREE Shipping on orders over $49. Details|
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- Five times stronger in tensile than typical hook-and-loop fasteners
- Durable enough to be opened and closed 1,000 times before losing 50% of its original strength
- Mushroom-shaped stems snap in place to ensure fastener is engaged
- General purpose acrylic adhesive bonds to metals, glass and medium to high surface energy plastics
- Trial bags offer a simplified "go-to" selection of stem density pairings
- Easy peel-apart for quick access
- Durable enough to be opened and closed 1,000 while maintaining 50% of its original strength
Specifications for this item
|Brand Name||3M Dual Lock|
|Manufacturer Series Number||51111976296|
|Maximum Temperature||200 Degrees Fahrenheit|
|Number of Items||1|
|Overall Length||10 feet|
|Overall Width||1 inches|
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From the Manufacturer
Strength in Numbers
One little mushroom won't accomplish much in this world, but pair him up with a few hundred of his friends and he becomes nearly unstoppable. Teamwork, that's the idea behind the design on the 3M Dual Lock Reclosable Fastener TB3550. When joined together, these unique, mushroom-shaped stems combine to interlock with one another, generating five times the closure strength of typical hook and loop fasteners while maintaining the ability to easily peel-apart for quick access.
3M Dual Lock TB3550 Reclosable Fastener contains approximately 250 mushroom-shaped head stems per square inch. When two pieces of Dual Lock are pressed together the stems flex and the mushroom heads slide past each other. After mating, the stem snaps back into its original position, interlocking with the opposing heads with an audible snap that signals the fastener is engaged. This system can be opened and closed 1,000 times while maintaining 50% of the original tensile strength.
No Drilling, Screwing, Tightening, or Complex Installation
3M Dual Lock TB3550 uses an acrylic adhesive that bonds well to a variety of high medium surface energy materials, including some plastics, metal, glass and painted surfaces. This ensures a quick and easy installation without the use of mechanical attachment processes. The adhesive sticks quickly and reaches full strength after 72 hours. Once bonded the interlocked, mushroom-shaped stems provide an attachment that holds as well as screws or rivets, yet separates easily for access.
Versatile, Durable and Invisible
There's no limit to the number of uses for 3M Dual Lock fasteners. The stems, mushroom tops, and film backing are constructed of clear polypropylene, and the polyolefin backing resist common solvents and alkaline solutions, making them ideal for a variety of purposes and environments. The fastener is recommended for use at temperatures ranging from -20°F/-29°C to 200°F/93”C. Hidden from view when attached, these fasteners provide a clean, unbroken surface, and stay strong through more than 1,000 open-close cycles.
Dual Lock Reclosable Fasteners are used extensively in transportation, electronics, business equipment, machinery, medical, and sign and display markets. They are ideal for both indoor and outdoor applications including: attaching signs, cushions, enclosure and access panels, banners, doors, adjustable shelving, vehicle ceiling panels, furniture seats and backs, and much more.
From the Manufacturer
3M Dual Lock Reclosable Fastener TB3550 attaches access doors and panels, signs, display components, and many other frequently opened and closed parts – without special tools. Mushroom-shaped stems interlock to provide five times the closure strength of typical hook and loop fasteners yet easily peel apart for quick access. This trial bag includes enough material (Dual Lock) to make a 10 ft mated strip of 250/250 stem density, a combination proven successful for a majority of indoor and outdoor applications. This Dual Lock product uses durable acrylic adhesive to bond strongly to metals, glass, some plastics and painted surfaces. The adhesive sticks quickly and reaches full strength after 72 hours.
Indoor and outdoor applications include attaching doors, access panels, signs, cushions, and headliners. Interlocked mushroom-shaped stems provide an attachment that may be as strong as screws or rivets, yet separates easily for access or repositioning. Hidden from view when attached, the fasteners provide a clean, unbroken surface, and stay strong through more than 1,000 open-close cycles.
The 3M Dual Lock TB3550 Reclosable Fastener surface has approximately 250 stems per square inch, each stem ending in a mushroom-shaped head. The stems, heads, and continuous-film backing are constructed of clear polypropylene. Engaged thickness is 0.23 inch/5.8 mm. The system can be opened and closed 1,000 times while maintaining 50% of original tensile strength. The acrylic adhesive bonds well to a variety of high and medium surface energy materials, including some plastics, metals, glass, and painted surfaces. The stems, mushroom tops, and polyolefin backing resist common solvents and alkaline solutions. The fastener is recommended for use at temperatures ranging from -20°F/-29°C to 200°F/93°C.
No drilling, screwing, tightening, or complex processes
When two pieces of Dual Lock fastener are pressed together, the stems flex and the mushroom heads slide past each other. After passing the mushroom heads on the opposing mating piece, a stem snaps up into its original position, interlocking with the opposing heads. The audible snap signals the fastener is engaged. The attachment formed may be as effective as screws or rivets, but will peel apart for repositioning. Dual Lock reclosable fasteners are used extensively in transportation, electronics, business equipment, machinery, medical, and sign and display markets. Applications include attaching signs, enclosure panels, banners, repositionable shelving, vehicle ceiling panels, furniture seats and backs, marine carpeting, and orthopedic brace closures.
About 3M Industrial Adhesives and Tapes
For more than a century, 3M has applied innovation and technology to improving our customers’ lives and supporting their business goals. Today the company, from headquarters in St. Paul, Minnesota, serves industrial and commercial customers and consumers in nearly 200 countries. The 3M Industrial Adhesives and Tapes division includes application-specific products, including Dual Lock Reclosable Fasteners that provide durability, strength, and special characteristics such as temperature resistance and short- and long-term protection. The 3M brand, across thousands of products, represents consistency, superior quality, and value.
3M packages and labels its industrial/commercial products for purchase and use by industrial, professional, and commercial customers. Unless specifically stated on the product package or applicable product literature, 3M industrial products are not packaged, labeled, or intended for sale to individual consumers (ie., the general public).
Top Customer Reviews
If you don't know what dual lock is think of the strips they give you with your ez-pass for mounting on the window.
The adhesive is great but here are a few tips.
Clean the surfaces thoroughly. I suggest some rubbing alcohol clean both surfaces and let it dry. This is common sense but many people forget to do this.
Make sure the surfaces are flat. if its textured you can use a little sandpaper. be sure its not a visible area.
Use a lighter and heat up the adhesive just slightly. Do not scorch the the adhesive, just a few quick passes makes it slightly more pliable and much more sticky. This is especially important if it is near freezing.
On a surface where you are having particular difficulty getting any type of adhesive to adhere, a small dot of crazy glue in the center will do the trick. Just make sure its on a surface you wouldn't mind leaving a mark if you had to pull it off.
I thought that $2.14 a foot was a bit high, but with Amazon Prime it was doable.
What you actually receive is 20 feet. The package contains two 10 foot rolls. That makes the price per foot $1.07 which is an excellent price.
Notice the picture does show two rolls. Each of those rolls is 10 feet, not 5 feet like you might expect, given the description.
No more hooks and loops anymore, this product mates with itself and doesn't have the destructive "tear" when separating. The pieces interlock and grip like nobody's business. Package says good for 1000 separations (that's a lot) and I believe it.
A couple of tips:
1. Although the backing adhesive is excellent, make sure you clean the mounting surfaces well with alcohol to remove any trace of grease. Remember this stuff is strong, so you need a good adhesive bond that will withstand the force of separation.
2. Try not to upset the roll when it arrives. Don't unravel it. I pull it out from the center. The reason is if the film that protects the mounting adhesive gets separated you may be compromising the sticking properties. That would make it wear out faster.
3. Plan carefully exactly how much you need. This stuff is expensive but works so well you may need less than you think! You can also cut it lengthwise for thinner strips. This has worked well for me.
4. Note: the adhesive is white which will stand out if placing on glass like a windshield.
5 stars. Another fabulous 3M invention!
Most Recent Customer Reviews
I use this on everything that I do not intend to place as a permanent solution. It works better than Velcro and holds better than Velcro. Read morePublished 22 days ago by Josh Park
great product, connects very firmly, the glue however is not as tough as the "dual lock" side.Published 26 days ago by Guy
Much stronger than any fastener I've used before. Easy to install and fastens with an audible click. I used to hang plywood ceiling panels. Excellent product!Published 1 month ago by Amazon Customer
Adhesive isn't stout enough to withstand multiple mate-unmate actions when adhered to plastic surfaces (ABS cases). Probably would do fine on glass or polished metal surfaces. Read morePublished 1 month ago by Bob M
Love this stuff, works great. I see a lot of confusion in the Q&A for this stuff. This should clear it up - the opposite of mated is unmated. Read morePublished 1 month ago by Randy
I buy a lot of Dual Lock to use with my invention Lucidbrake. In all cases, Dual Lock has come in "Mated Strip" bags, often with a 3M label, where there are two rolls each... Read morePublished 1 month ago by John Craig
I don't understand why on black dual lock strip would have a white adhesive backing. On the clear dual lock strip the adhesive backing is clear. Read morePublished 1 month ago by PJM
An absolute must for pedalboards! Velcro is the norm, but this stuff will outperform it easily!Published 2 months ago by Zach Drummond