Pressure-sensitive tape
Type of adhesive / From Wikipedia, the free encyclopedia
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Pressure-sensitive tape or pressure-sensitive adhesive tape (PSA tape) is an adhesive tape that will stick with application of pressure, without the need for a solvent (such as water) or heat for activation. It is known also in various countries as self-stick tape, sticky tape, or just adhesive tape and tape, as well as genericized trademarks, such as Sellotape, Durex (tape), Scotch tape, etc.
PSA tape consists of three components:
- the tape itself, which often is cellophane, cellulose acetate, or polyvinyl chloride. Other materials include paper, plastic film, cloth, or metal foil coated onto a backing material such as paper, plastic film, cloth, or metal foil.
- a pressure-sensitive adhesive.
- release liner, which keeps the tape from sticking to itself. Some have layers of adhesives, primers, release agents,[1] filaments, printing, etc. made for specific functions.
It will stick without the need for a solvent such as water or heat for activation. By contrast, "gummed" or "water activated" adhesive tapes require warm water for activation and "heat activated" tapes require heat.
Single-sided tapes allow bonding to a surface or joining of two adjacent or overlapping materials. Double-sided tape (adhesive on both sides) allows joining of two items back-to-back.