Editing Adhesive (section)

=====One-part=====
''One-part adhesives'' harden via a chemical reaction with an external energy source, such as [[radiation]], heat, and [[moisture]].

[[File:Steeldive SD8205-2.jpg|thumb|A watch with a date magnifying lens ("cyclops"). The cyclops is attached with transparent UV light curing adhesive to the top of the watch crystal.]]

''Ultraviolet'' (UV) ''light curing adhesives'', also known as ''light curing materials'' (LCM), have become popular within the manufacturing sector due to their rapid curing time and strong bond strength. Light curing adhesives can cure in as little as one second and many formulations can bond dissimilar substrates (materials) and withstand harsh temperatures. These qualities make [[UV curing]] adhesives essential to the manufacturing of items in many industrial markets such as electronics, telecommunications, medical, aerospace, glass, and optical. Unlike traditional adhesives, UV light curing adhesives not only bond materials together but they can also be used to seal and coat products. They are generally acrylic-based.

''Heat curing adhesives'' consist of a pre-made mixture of two or more components. When heat is applied the components react and cross-link. This type of adhesive includes [[thermosetting polymer|thermoset]] [[epoxy|epoxies]], [[polyurethane|urethanes]], and [[polyimide]]s.

''Moisture curing adhesives'' cure when they react with moisture present on the substrate surface or in the air. This type of adhesive includes [[cyanoacrylates]] and [[polyurethane|urethanes]].
{{See also|List of polyurethane applications#Adhesives}}