UV5139 Micro speaker speaker solder joint protection UV glue for electroacoustic industry

UV5139 is a one-component, UV-curable, acrylic adhesive. This product is specially designed for the bonding and coating of electronic components; the product has the characteristics of medium viscosity, fast curing speed, and good weather resistance.


Microspeaker speaker solder joint protection UV glue for the electroacoustic industry



Properties Reference
Chemical composition Polyurethane acrylic resin
Physical state liquid
Exterior Red viscous liquid (fluorescence)
Viscosity (25°C, spindle viscometer 4#30 mPa.s) 8000-10000
Specific gravity Kg/L 1.08
Solvent content% 0
Heavy metal contentPPM 0


UV5139 will cure under sufficient UV irradiation conditions. 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 395nm wavelength LED surface light source setting 220mw/cm² ultraviolet radiation:

Properties Reference
Tack free time (1mm) 5-10S
Deep curing time (1mm) 10-15S
Full cure energy (1mm) 3500 mj/cm²

*Recommended curing equipment: FUV-100 Oven Curing System or CUV-350 Conveyor UV Curing System


Product properties after curing the following data are measured after curing with a 395nm wavelength LED surface light source with a cumulative energy of 3500mj/cm²:

Properties Test method Reference
Hardness Shore D 70-80
Elongation % 130
Operating temperature range -40~130℃ Customers conduct self-tests with workpieces


Technical Documents

UV5139 Technical Data Sheet

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