Thermoplastic Acrylic Resin For Vacuum Plating Primer SE2556
In general, during synthesis, thermoplastic resins use a high
content of methyl methacrylate in their polymerization backbone
chain to provide excellent hardness and external durability, while
improving the wettability of pigments and/or providing
cross-linking or self-crosslinking capabilities, other acrylic
monomers can also be used to give the acrylic resin the ability to
sulfonate or phosphoric acid functionalities.
1. Features
Excellent adhesion, excellent flexibility, excellent pigment
dispersity
2. Applications
Non-ferrous metal, vacuum plating primer and top coat
3. Properties
| Component | Appearance | Fe-Co Color | Viscosity Pa.s/25℃ | Non-volatile % | Acid value mgKOH/g | Solvent | Tg ℃ |
| Acrylic ester copolymer | clear | <1 | 1-2 | 50±2 | 8-15 | BAC/PMA/MIBK | 50 |
4. Compatibility and solubility
| XYL | + | BCS | + |
| TOL | + | 120# | ○ |
| BAC | + | IBA | + |
| CYC | + | MEK | + |
Remark:+ show soluble in/compatible in ○ show partial soluble
in/compatible in
5. Reference formula
Plating over-printing varnish
| Diluent |
| SE2556 | 65 | TOL | 15 |
| BBG333 | 0.3 | IPA | 10 |
| BBG052 | 0.1 | BAC | 32 |
| BAC | 17.6 | XYL | 10 |
| E-44 | 7.0 | BCS | 8 |
| 20%1/2 NC | 8.0 | EAC | 25 |
| BBG1064 | 2.0 | | |
6. Process conditions
▲ Baking condition: 65℃ x45min 24h air drying
▲ Substrate: electroplating substrate
7. Test technical index
| Test Item | Test Method | Reference Standard | Test Standard | Test Result (reference value) |
| Gloss | 60 degree | GB/T9754-88 | ≥70 | 90 |
| Hardness | Pencil scratch | GB/T6739-96 | ≥HB | HB |
| Adhesion | Cross - cut method | GB/T9286-98 | 100% | 100% |
| Wettability | Visual method | ---------- | Easy to disperse, no seeding in storage, no jelly | Qualified |
| Flexibility | Paint film bending tester | GB/T1731-1993 | 1µm | 1µm |
8. Safe storage and shelf life
1. Stored in cool and ventilation place, keep far away from heat
and fire resources, keep the container closed.
2. From production date, shelf life is 12months.
9. Packing specifications
200kg/pail (new metal pail)
10. Safety
This product contains solvent, must do safeguard procedure, handle
carefully, avoid contact with the skins and eyes, for other
details, please refer to MSDS of this product.
