UV3501 BGA four-corner underfill UV glue

UV3501 is a one-component, UV-curable, acrylic adhesive. This product is specially designed for bonding, fixing, and covering protection of electronic components; the product has the characteristics of high viscosity, fast curing speed, and good weather resistance.


BGA four-corner underfill UV glue



Properties Reference
Chemical composition Polyurethane acrylic resin
Physical state Liquid resin
Appearance Colorless transparent viscous liquid
Viscosity (25°C, spindle viscometer4#12 mPa.s) 25000-40000
Specific gravity 1.08
Solvent content (%) 0
Heavy metal content PPM 0


Curing will occur under sufficient ultraviolet irradiation. The curing speed and depth depend on the light intensity, spectral distribution of the light source, irradiation time, and the light transmittance of the adhered material. The following data are measured under the condition of ultraviolet radiation of 20mW/cm² produced by a high-pressure mercury lamp.

Properties Reference
Tack free time (1mm) 10-15 s
Deep curing time (1mm) 30-35 s
Full cure energy (1mm) 900 mJ/cm²


The following data are measured after curing with a high-pressure mercury lamp source with a cumulative energy of 900mj/cm².

Properties Test method Reference 
Hardness Shore D 70-75
Elongation % 160
Operating temperature range -40-130 0C Customers can test by themselves according to the workpiece
Exterior Visual inspection Transparent
Shear strength PC/ABS ≥25N/cm²
Peel strength PC/ABS ≥15N/cm²


Technical Documents

Technical Data Sheet

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