UV5138 Micro speaker magnet bracket bonding with UV glue in the electroacoustic industry
UV5138 is a one-component, UV-curable, acrylic adhesive. This product is specially designed for bonding and fixing various electronic components and plastic substrates; the product has the characteristics of good flexibility, fast curing speed, high bonding strength, and good weather resistance.
TYPICAL APPLICATION
Microspeaker magnet bracket bonding with UV glue in the electroacoustic industry
Specifications
UNCURED PROPERTIES
| Properties | Reference |
| Chemical composition | Polyurethane acrylic resin |
| Physical state | Liquid |
| Appearance | Red viscous liquid |
| Viscosity
(25℃, spindle viscometer 4#12 mPa·s) |
22000-28000 |
| Specific gravity Kg/L | 1.08 |
| Solvent content% | 0 |
| Heavy metal content PPM | 0 |
CURING PROPERTIES
UV5138 will cure under sufficient ultraviolet 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 that a 395nm wavelength LED surface light source generates 220mw/cm2 ultraviolet radiation:
| Properties | Reference |
| Tack free time (1mm) | / |
| Deep curing time (1mm) | 10-15S |
| Full cure energy (1mm) | 3500 mj/cm2 |
*Recommended UV Cure System: FUV-100 Oven Curing or CUV-350 Mercury Curing System
UNCURED PROPERTIES
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 A | 30-35 |
| Exterior | Visual inspection | Red |
| Operating temperature range | – 40～130℃ | Customer self-test |
| Shear strength | PC/ABS | ≥50N/cm² |
| Peel strength | PC/ABS | ≥20N/cm² |
Technical Documents
UV5138 Technical Data Sheet
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