UV Curing Water Soluble Temporary Bonding Adhesive

3918 UV Curing Water Soluble Temporary Bonding Adhesive is an amber transparent UV adhesive for temporary bonding and coating. It has strong flow for easy coating and, once cured, provides good adhesion to glass and metal. It can be quickly removed by warm water or ultrasonic cleaning with no residue and no secondary contamination, making it ideal for temporary bonding and coating of glass, jewelry, optical lenses and premium crafts during grinding.

Technical Specifications

Key Features

• High flow for easy coating
• Good adhesion to glass and metal after curing
• Quickly removable by warm water or ultrasonic cleaning
• No residue and no secondary contamination after removal
• Ideal for temporary bonding during grinding
• Suitable for glass, jewelry, optical lenses and premium crafts

Applications

• Temporary bonding of glass during grinding
• Jewelry processing temporary fixation
• Optical lens temporary bonding and coating
• Premium craft temporary bonding
• Removable protective coating

Operation Guide

1. Surface preparation: clean the workpiece to remove oil, dust and contaminants.
2. Application: apply the adhesive by flow coating for easy coverage.
3. UV curing: expose to UV light at 400 mJ/cm² until fully cured.
4. Processing: proceed with grinding, polishing or other processing steps.
5. Debonding: remove the cured adhesive quickly with warm water or ultrasonic cleaning.
6. Inspection: verify no residue remains on the workpiece surface.

FAQ

Q1: What is the 3918 adhesive mainly used for?
3918 is a UV curing temporary bonding and coating adhesive for glass, jewelry, optical lenses and premium crafts during grinding.

Q2: How is it removed?
It can be quickly removed by warm water or ultrasonic cleaning.

Q3: Does it leave residue?
No. It leaves no residue and does not cause secondary contamination after removal.

Q4: Which substrates does it bond to?
It provides good adhesion to glass and metal after curing.

Q5: What hardness and adhesion does it provide?
The cured layer has a Shore D hardness of 40 and an adhesion force of 14N.

Q6: What are the storage conditions and packaging?
Store at 8-28°C in the original sealed container. Shelf life is 12 months. Available in 250ml and 1kg packaging.