SINOMER® UVU6290 is a difunctional aliphatic urethane acrylate oligomer. It is designed to offer an excellent balance of flexibility, non-yellowing properties, and adhesion to various substrates, particularly plastics. This product features good water resistance, excellent weatherability, and low odor, making it suitable for high-performance UV-curing applications.
SINOMER UVU6290
Ingredient: Aliphatic Urethane Diacrylate
Types : Difunctional aliphatic amino ester
Supply form: 100% Resin
SINOMER® UVU6290 is a difunctional aliphatic urethane acrylate oligomer. It is designed to offer an excellent balance of flexibility, non-yellowing properties, and adhesion to various substrates, particularly plastics. This product features good water resistance, excellent weatherability, and low odor, making it suitable for high-performance UV-curing applications.
| 检验项目 (Item) | 指标要求 (Specification) |
| 外观 (Appearance) | Colorless viscous transparent |
| Color (Fe-Co) | ≤ 1 |
| Viscosity (cps/40℃) | 70000-90000 (NDJ-79 type viscometer) |
| NCO (%) | 0 |
| Functionality | 2 |
| Refractive index (25℃) | 1.483±0.005 |
| Density (g/cm3) | 1.12±0.02 |
Excellent Non-Yellowing Performance: Due to its aliphatic structure, it maintains color stability upon and after UV exposure.
Good Flexibility: Provides outstanding elasticity and crack resistance to the cured film.
High Water Resistance: Exhibits excellent resistance to boiling water, ensuring film integrity.
Superior Weatherability: Resists degradation from UV light and environmental factors.
Low Odor
Good Adhesion: Promotes strong adhesion to various substrates, including plastics (PC, etc.) and metal layers.
The polymerization inhibitor (MEHQ for example) can be controlled within 50ppm, which is suitable for skin contact areas such as nail polish.
| 检验项目 (Item) | 指标要求 (Specification) |
| Primer for PC Mobile Phone Case (Vacuum Metallization) | |
| UVU6290 | 8 Coating Properties |
| UVE3102* | 20 |
| Leveling | Excellent |
| TMPTA | 18 |
| Pencil Hardness | B |
| EA | 45 |
| Adhesion (to PC substrate) | 100/100 |
| DAA | 5 |
| Adhesion (to Aluminum layer) | 100/100 |
| PI-1173 | 4.3 |
| Resistance to Boiling Water | 100/100 |
| Leveling Agent | 0.2 |
| Solids content | 50 |
| Viscosity (NK 2#, s) | 9.8 |
| Viscosity (Tu 4#, s) | 13.5 |
| Process | |
| PC mobile phone case → Primer spraying → Flash off solvents (60°C, 4 min) → UV curing (600 mJ/cm²) → Vacuum metallization with aluminum → Topcoat spraying → UV curing (600 mJ/cm²) |
20kgs/50kg or 200kg/drum.
存放在干燥、阴凉、通风良好的库房内。
避免受光照和高温加热。
运输过程中做好防漏、防雨与防暴晒保护。