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You can not only mount a speaker cone with glue or tape. Adhesive tape can even turn into loudspeaker membrane itself. And much more. You can cool, ground, set to mute and fly around the world with adhesive tape. We have compiled 11 fantastic examples for the use of adhesive tape.
If you talk on your smartphone for so long that your ears get warm, then you should think about double-sided adhesive tape. Not for your ears, but about the fact that you already have it in your hand when you phone. Double-sided adhesive tape in your smartphone ensures that it will not overheat. When used to the max, some parts inside there reach up to 90° C. So that nothing burns through, adhesive tapes divert heat and reduce the heat stress by 20° C in total.
We do not want to heat up your head with physics again, but we would like to briefly sketch out the physical principle that we use for our benefit here. It is: the thinner the adhesive tape, the better its ability to conduct heat away from the source. We are even somewhat proud to say that tesa set a world record here. The thinnest tape in the world comes from us. It measures a total of 5 µm. By comparison: pull a hair from your head and hold it against the light. Your hair is ten times thicker than our adhesive tape.
When a lot of electronics only have a little space, this may lead to everything from voltage to short circuits. Adhesive tapes that discharge, protect and ground ensure the necessary conditions – also for the user. They glue just as reliably as other adhesive tapes. They also balance out electrical potential, discharge static charges and connect metallic conductor tracks and housing parts safely to each other. Nickel and copper are worked into the adhesive tape for this use. Such adhesive tape has another advantage for the electrical industry: it is suited for almost every area of use due to its low thickness and helps with every design.
Let us stick with electronics. Everyone who has heard of someone who knows someone who has a friend whose smartphone fell in the bathtub knows how damaging moisture is for electronic high-end devices. In the production of smartphones etc., however, we are speaking of very different quantities of moisture. Namely not of bathtub amounts, but of the finest steam that may not enter into the device. For the production of smartphone displays, the permitted amount of steam permeability is, for example, a 100,000th of what it is for the production of a milk carton.
So-called barrier adhesive tapes help with this: at room temperature they seal the LEDs of a smartphone display for many years, preventing any moisture in the air from getting in. Special DrySeal® liner technology in the separating foil of the adhesive tape also ensures that the remaining moisture from the adhesive will be soaked up like a sponge during transport to the place of use.
Touchscreens must be bright and extremely clear. And they also contain adhesive tape. Adhesive tape holds the screen reliably without letting it become foggy over the years. Such use of adhesive tape achieves 99% light permeability; it is highly transparent. So that it remains like this, it is extremely UV-resistant. It can’t be bulky either: it is only 25 µm thin, that is 25/1,000 mm. You can only achieve such a performance in production under clean room conditions. The air in such a tesa production facility is 1,000 times cleaner than at the peak of a mountain – and we are speaking of a very high peak in a very unpopulated mountain with very, very pure air.
Adhesive tape is not just seen; it can also be heard. This happens if you make use of the extremely good attenuation properties of widely divergent and interwoven acrylate chains of molecules in the adhesive. This form of adhesive tape use is found above all in tiny loudspeakers in cell phones etc., which do not just have to transmit speech, but also challenging tones and sounds perfectly. The acrylate adhesive is in a three layer construction between two high performance films. While the high performance films produce a high amount of rigidity, the adhesive contributes its flexibility to the sound – with a total thickness of 22 µm to 60 µm. And sometimes, taping a speaker cone is no emergency repair, but rather real high-tech.
Before a new car becomes a used car, a few years must pass. During these years, you would like to enjoy each individual trip from beginning to end. Nothing should rattle in the car and drown out the sounds of the radio. Even with 200 things on the highway. tesa has an entire range of products for using adhesive tape in a car. The adhesive tapes reduce or prevent annoying sounds as well as vibrations, squeaking or the rattling of car parts.
Adhesive tape can hold together more than just what belongs together. Special adhesive labels can even say exactly what belongs to whom and whether the thing that you see is actually real. A unique technology developed by tesa's subsidiary tesa scribos makes it possible to write information in a label and in four levels by laser so that it carries visible information and also information only readable with special reading devices.
The tesa PrioSpot®, which is the name of the label, can unambiguously label products like a finger print – and offers the highest amount of security against counterfeiting and pirate products. It can also be combined with RFID chips, bar codes or QR codes. This lets everyone in the supply chain, from the production facility to the logistics company, the customs authorities, retailers and end consumers, check at any time whether the product is an original. All you need is a cell phone to authenticate it.
Sometimes adhesive tapes simply like to travel. An adhesive tape from tesa has made it to space. The "tesa® Secure Laser Label," actually developed as a vehicle ID label for cars, circled the earth on the outside shell of the international space station ISS for a whole 495 days – and was thus in space for almost 60 times longer than Neil Armstrong. But such a high-performing adhesive tape naturally did not have time to enjoy the sights: it had to endure extreme fluctuations in temperature, the vacuum, ultraviolet waves, colliding micrometeorites and the finest space debris – and passed the test. All the information that was written on the label could still be read on the 500th day.
Finally, it is back down to earth again. In the southern hemisphere waits the last of many adhesive tape uses: a tesafix foam adhesive tape had to overcome very different challenges. That is because our adhesive tape has been on the go for the sake of research for many years. It has waddled with the Humboldt and Magellanic Penguins and their small GPS trackers on the Falkland islands for more than 20 years. The trackers are attached to them with tape. The most important property of the adhesive tape here is: not damaging the feathers. And right behind that: it must be resistant to salt water and ice cold, of course.