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Permanent PSAs may initially be removable (for example to recover mislabeled goods) and build adhesion to a permanent bond after several hours or days. Removable adhesives are designed to form a temporary bond, and ideally can be removed after months or years without leaving residue on the adherend.
High Tack Glue Dots: for removable or temporary fixing such as sticking credit cards to letterheads; Low Tack Glue Dots: still removable, but create much stronger adhesion for heavier items, such as sticking CDs to magazines. High Shear Tack: semi-permanent glue dots with vertical hold ability that will create a strong bond between most surfaces.
Provisional (or temporary) luting agents are used specifically for inter-appointment fixation of temporary restorations, prior to cementation of a permanent restoration. [20] It is mainly provisional crowns and bridges (fixed partial dentures) that are cemented with eugenol-containing temporary cements, but sometimes they may be used for ...
Cyanoacrylate glue has a low shearing strength, which has led to its use as a temporary adhesive in cases where the piece needs to be sheared off later. Common examples include mounting a workpiece to a sacrificial glue block on a lathe, and tightening pins and bolts. It is also used in conjunction with another slower, but more resilient ...
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).
bone glue, and fish glue including isinglass. Animal connective tissue. and bones hides are acid-treated, neutralized, and repeatedly soaked; the soaking-water is dried into chips hydrolyzed collagen: Until it cools Thermoplastic. Somewhat brittle when set Water-soluble Cabinetmaking, bookbinding, lutherie, glue-size: Keratin glues Hoof glue ...