High Refractive Index UV Adhesive

3951 High Refractive Index UV Adhesive is an amber transparent UV adhesive for optical bonding. Its refractive index can be adjusted from 1.51 to 1.625, and it cures quickly with low shrinkage and low curing stress. It offers good adhesion to glass and plastic and is designed for bonding optical devices and optical films.

Technical Specifications

Key Features

• Adjustable refractive index from 1.51 to 1.625
• Fast UV curing
• Low shrinkage with low curing stress
• Good adhesion to glass and plastic
• Designed for optical devices and optical films
• Amber transparent for optical applications

Applications

• Bonding of optical devices
• Optical film lamination and bonding
• Lens and glass optical component assembly
• Plastic-to-glass optical bonding
• Precision optical component fixing

Operation Guide

1. Surface preparation: clean the optical parts to remove dust and oil.
2. Application: apply a controlled amount of 3951 to the bonding area and remove bubbles.
3. Assembly: align and press the parts together without trapping air.
4. UV curing: expose to UV light at 500 mJ/cm² until fully cured.
5. Inspection: check for clarity and bubble-free bonding.
6. Storage: store sealed at 8-28°C; shelf life is 12 months.

FAQ

Q1: What is the 3951 adhesive mainly used for?
3951 is a high refractive index UV adhesive for bonding optical devices and optical films.

Q2: What refractive index can it achieve?
Its refractive index can be adjusted from 1.51 to 1.625.

Q3: How is it cured?
It cures quickly under UV light at an energy density of about 500 mJ/cm².

Q4: Does it cause stress on the parts?
No. It has low shrinkage and low curing stress.

Q5: Which substrates does it bond to?
It offers good adhesion to glass and plastic.

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 1kg packaging.