Ultraviolet Adhesives
Ultraviolet adhesives employ ultraviolet light to cure. This type of adhesive
became available in the early 1960's and developed rapidly with advancements
in chemical technology. Once it is exposed to ultraviolet light, the adhesive
can cure extremely quickly. This fast curing can expedite manufacturing processes.
Ultraviolet adhesives may be epoxy or acrylic. Epoxy ultraviolet adhesives
can be modified with various additives for special uses. They may be electrically
or thermally conductive, formulated to reduce shrinkage, increase impact resistance,
or able to withstand very high or low temperatures. Acrylic ultraviolet adhesives
are modified at the chemical level. They have wide-ranging properties which
can include environmental resistance and impact resistance.
Ultraviolet light may be applied to the adhesive in a variety of ways, including
spot curing lamps for small areas, UV ovens, hand-held devices, and UV curing
conveyors.
Ultraviolet adhesives bring many advantages to manufacturers. They are easy
to use, cure rapidly, consistent and flexible in processes, and reduce environmental
concerns. They are used in various settings from glass, metal, and magnet bonding
to dentistry, medical device manufacturing, and fiber optics.