UV adhesives have a fascinating history that dates back to the 1960s when traditional adhesives often required a very long curing time and were formulated with solvent. At that time, the technology of light-curable adhesive attracted various industries thanks to its special solidification process which utilizes ultraviolet light to initiate a photochemical reaction, and generate a crosslinked network of polymers, resulting in a strong and durable bond.
1. Outstanding Advantages of UV Adhesive
FIND OUT MORE about UV Adhesive and Its Basic Composition
From the late 1980s, UV curable adhesive became increasingly popular, expanded into numerous fields: electronics, automotive, medical device assembly… with their significant benefits:
1. Rapid Curing
UV adhesive can cure within seconds upon exposure to sufficient UV light, allowing for quick assembly and handling of bonded components. This rapid curing accelerates production processes and increases overall efficiency.
DIVE IN full article about Curing Mechanism of UV Adhesive here
2. Versatility
UV adhesive offers high compatibility with different substrate: metal, glass, plastic, ceramic or composite.
The light-induced hardening of this kind of adhesive is generally achieved by 2 main mechanisms: a radical mechanism (for acrylic resin) or a cationic mechanism (for epoxides resin. Radiation curable adhesive mostly use for different application: glass bonding, plastic bonding, wire tacking, conformal coating, potting, …
Meanwhile, Cationic curable adhesive, normally known as Dual-cure adhesive, where the UV-exposure is followed by thermal treatment to gain a better adhesion, and heat resistance. The development of UV dual cure system has been expanded recently, combining UV curing to initiate the reaction and follow by an anaerobic curing mechanism or moisture curing. This type of dual cure is preferable in conformal coating or bonding application, especially in automotive, camera module assembly, display assembly where requires a fast processing with high durability bonding/coating/sealing layer.
Prostech offers a wide range of UV Adhesive products which can deliver clearer results, and help to save on production costs and materials. Contact us to receive valuable information and consultation from our qualified experts.
3. Minimal VOCs
UV curable adhesive does not require solvents or other chemicals for curing, reducing the emission of volatile organic compounds (VOCs) and minimizing environmental impact. This instant drying process also minimizes shrinkage of adhesive, especially compared to conventional curing technique. The environmental friendliness here is the key point to make UV adhesive continue to attract attention in various industrial sectors, especially medical devices. In order to know more applications of UV Adhesive in medical field, you can refer to this full article: Using UV Adhesive in Medical Devices manufacturing.
4. Optical clarity
Compared to other kinds of adhesive, UV adhesive provides a high optical clarity thanks to unique composition and the photopolymerization can occur without the introduction of volatiles or by-products that could cloud or compromise the adhesive’s clarity.
With those benefits, optical UV-curable adhesive, called Optical Clear Adhesive (OCA) is mainly used in Optics, Medical Device and Display technology applications such as LCDs, TFT screens, OLED/ LED display, AR, and VR display.
2. Solutions from Prostech
To achieve superior performance of using UV adhesive, Prostech offers some solutions, highlighting UV products for your manufacture:
Products | Key features |
| Permabond 4UV80HH is a fast, UV curing adhesive that is used for plastics in the medical device industry such as needle bonding, with benefits:
|
| Permabond 130UV is a dual cure adhesive combining UV curable and followed by fast moisture cure from cyanoacrylate group.
|
Gluditec UV5103H | Gluditec UV5103H is a UV thermal cure adhesive, an ideal adhesive for optical component bondind/sealing or camera module assembly thanks to its advantages:
|
