The cardboard flaps were held shut with a strip of paper tape with a tab hanging loose that would allow soldiers to rip open the boxes in a hurry. You have sons in the service also. The result was a strong, waterproof tape that soldiers could still tear apart with their hands in a pinch. Since its origins , the tape has consisted of three major components : a bottom layer of glue, mesh fabric, and a polyethylene plastic coating on top to keep it water-resistant.
Its stickiness is created by a pressure-sensitive adhesive , or PSA, which is a soft polymer blend that employs van der Waals forces to attract two surfaces.
These intermolecular forces are weak on their own, but with enough of them, they are capable of supporting very heavy loads this is the same principle that allows geckos to stick to walls.
They don't change at all. But this type of adhesive will leave behind a sticky residue when removed. A better option would be All Purpose Repair Tape, which maintains a strong grip while removing cleanly from any surface. Standard duct tape has a thin layer of adhesive so it adheres best to smooth, even surfaces. Applying it to rough or irregular surfaces means the tape will only make contact with the high points thereby lessening the strength of its bond. Extreme cold hardens the adhesive and diminishes sticking power of existing duct tape.
And if you are applying the tape under cold conditions, it may not stick at all. What started as a battlefield repair tool has truly become an iconic American fix-all, helping DIYers, professionals, and dads out of sticky situations throughout the years. But with so many options already on the shelves, how do you make a better duct tape?? ECHOtape CL-W strikes a delicate balance between strength and usability, providing the maximum amount of sticking power without sacrificing ease of use.
How did we make that happen? By using a new, advanced technology — a two head coating process. The first coat ensures high sheer strength, and the second coat, high initial tack. The result is a beautifully streamlined piece of tape that is lighter, yet stronger than you would imagine, and easy to unwind. Read more about CL-W here. Contact us today for help in selecting the right tape for your next job. If you're Kirk Giordano, the answer is unequivocally false.
Narrator: There are three main components that go into making the tape. Rubber for the adhesive, cloth, and backing. The rubber comes from rubber trees and arrives at the factory in large bales.
A machine mixes the raw rubber along with various sticky resins until it reaches the consistency of pizza dough. Then, the mixture is heated to over degrees Fahrenheit. Now the adhesive is ready to be added to the cloth and the backing. The cloth, sometimes called the scrim, lies in between the sticky rubber layer and that ubiquitous silver backing.
It's made from cotton and is a key part of the tape. The cloth is what gives the tape its tensile strength. It makes it easy to hand tear and keeps the tape stuck to a surface once it's laid down. Finally, there's the backing. The backing is made from polyethylene, the same plastic material used to make bags and shampoo bottles.
Once the backing is ready, all of the materials are put together. Ashley Luke: So there's basically two ways that the backing can be incorporated into the tape: either laminated or co-extrusion. How did we ever manage without it? At the time, the US military used paper tape to seal their ammunition cartridges. They often had to be opened quickly to reload during battle, but were regularly not strong enough for this application.
The paper tabs tended to rip off, making the tape difficult to remove and slowing the troops down during crucial moments. An inspector at a rifle cartridge factory named Vesta Stoudt identified this problem and suggested an alternative solution: a stronger, polyethylene-coated cloth tape that could be easily torn by hand but was more resistant to water and accidental damage.
So she decided to directly send a letter to President Franklin D. Roosevelt outlining the problem and her solution, effectively inventing the modern duct tape. How the name originated is less clear, and there are a few conflicting stories. Duct tape today remains very similar and just as useful. Over the decades since the Second World War, duct tape has become extremely popular among many different professionals.
It has many similar applications in the wider industrial sector, too.
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