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UV Curing Adhesives VNOVO 331

product details

VNOVO® 331 is a one-component, modified acrylate UV-curable product that cures by UV light. It is suitable for printed circuit board reinforcement and bonding of various materials. It has excellent bonding properties to various plastics, glass and metals.

The cured product has excellent flexibility and strength, making it highly resistant to vibration and impact.

Application

- Flexible PCB reinforcement;

- Plastic, glass, metal bonding and sealing.

Product Data

Properties	Price
Appearance	Colorless to pale yellow transparent liquid
Composition	Modified acrylic
Specific gravity	1.0
Viscosity (Brookfield, 51#, 20rpm), mPa.s	17,000
Surface dry energy, mJ/cm2	1000
Properties after curing
Hardness, shore D	60
Elongation at break, %	200
Tensile strength, MPa	16
Shear strength, MPa (glass/glass)	12.5
Shear strength, MPa (PMMA/PMMA)	6.2

*Curing Instructions: Curing speed varies with the intensity of the UV lamp, light distance, light source spectral distribution, exposure time and substrate transmittance.

Notes

1. Clean the bonding surface, make it dry and free of grease;

2. Do not forcefully squeeze or repeatedly rub the substrate to be bonded during operation. Continue to illuminate for 30 to 60 seconds after positioning to achieve higher intensity.

3. The UV curing rate depends on the intensity of the bulb, the distance between the light source and the adhesive layer, the required curing depth or gap between the adhesive layers, and the light transmittance of the substrate;