Low temperature curing thermosetting Acrylic Resin SE3668
The reaction of thermosetting acrylic resin with amino usually need
to proceed in certain baking temperature(usually requires
150℃-180℃),but many light weight plastic substrates in more than
130℃ curing temperature physical deformation will happen,
therefore, required to provide a relatively low temperature baking
conditions(80-120℃) thermosetting resin, it could provide
possibility for these coatings to be used in these plastic and
other heat sensitive substrates.
Thermosetting acrylic resin SE3668 is developed to meet this
demand.
1. Features
Low temperature (90℃)curing, excellent adhesion and flexibility,
excellent chemical resistance and recoatability
2. Applications
General metal baking varnish, hard to attach metal paint,
electroplating varnish
3. Properties
| Component | Appearance | Fe-Co Color | Viscosity Pa.s/25℃ | Non-volatile % | Acid value mgKOH/g | Solvent |
| Acrylic copolymer | Clear | ≤2 | 2-5 | 60±2 | 8-12 | XYL/NBA |
4. Compatibility and solubility
| XYL | + | BCS | + |
| TYL | + | CAC | + |
| BAC | + | IBA | + |
| CYC | + | NBA | + |
Remark:+ show soluble in/compatible in
5. Reference formula
Electroplating varnish
| Diluent |
| SE3668 | 50.0 | XYL | 30 |
| SE582-3 | 23.0 | TOL | 40 |
| BBG-306 | 0.2 | BAC | 10 |
| BBG-052 | 0.1 | CAC | 10 |
| E-44 | 5.0 | IBA | 10 |
| TOL/IBA | 21.2 | | |
| BBG1063 | 2.0 | | |
6. Process conditions
▲ Baking condition: (1) 90℃ x 30min
▲ Substrate: galvanized tinplate
7. Test technical index
| Test Item | Test Method | Reference Standard | Test Standard | Test Result (reference value) |
| Hardness | Pencil scratch | GB/T6739-96 | ≥2H | 2H |
| Gloss | 60degree | GB/T9754-88 | ≥85 | 95 |
| Adhesion | Cross - cut method | GB/T9286-98 | 100% | 100% |
| Alcohol resistance | Wiping method | ------- | no exposing base for 400 times (500g) | 495 times(15μm) |
| Impact | Impact method | GB/T1732-93 | ≥30kg.cm | <50cm(15μm) |
| Flexibility | Bending method | GB/T1732-93 | ≥2mm | 2mm |
| Boiling resistance | Pochieren | ------- | No color change, no bubbling, no falling off | >60min |
| Salt fog resistance | Neutral salt fog | GB/T1771-91 | Unilateral corrosion not exceeding 3mm | 72h |
| Acid resistance | Soaking method | GB/T9274-88 | 10%H2SO4 24h no bubbling, no falling off, no color change | Qualified |
| Alkaline resistance | Soaking method | GB/T9274-88 | 5%NaOH24h no bubbling, no falling off, no color change | Qualified |
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.
