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Adhesives may be broadly divided in two classes: structural and pressure-sensitive. To form a permanent bond, structural adhesives harden via processes such as evaporation of solvent (for example, white glue), reaction with UV radiation (as in dental adhesives), chemical reaction (such as two part epoxy), or cooling (as in hot melt).
The term adhesive refers to a sticky substance, while something that is self-adhesive implies that it will stick without wetting or the application of glue to the product. [ 2 ] One of the most familiar types of adhesive labels is the postage stamp, which was developed in Britain in the 1840s [ 3 ] and became popular in the United States within ...
The use of PVAc on the Archimedes Palimpsest during the 20th century greatly hindered the task of disbinding the book and preserving and imaging the pages in the early 21st century, in part because the glue was stronger than the parchment it held together. [7] In handicrafts. As envelope adhesive. As wallpaper adhesive.
Rabbit-skin glue, in pellet form (left) and partially dissolved in water (right) Rabbit-skin glue is a sizing that also acts as an adhesive. It is a type of animal glue that is essentially refined rabbit collagen. The glue has been used for centuries for stretching and priming canvases for oil painting. It has also been an ingredient in ...
Adhesive is usually coated on a polypropylene or polyester film. Commonly 48 mm (1.9 in) or 72 mm (2.8 in) wide. Double-sided tape This tape has adhesive on both sides, and is used to stick two surfaces together. Duct tape Usually gray in color, this tape is backed with scrim, often coated with rubber or plastic. [1] Elastic therapeutic tape
Stamp collectors have criticized the format, because the rubber-based adhesive used tends to yellow the stamps progressively. It makes stamps difficult to remove from covers, [1] and to save in mint condition, though self-adhesives of recent years have improved in these respects. Artistamps have also been issued in a self-adhesive format ...