Hydroxyl Acrylic Resin for rubber primer
SE6530 is a hydroxyl functional acrylic resin, which has excellent
adhesion to rubber substrates. It gives excellent inter-coat
adhesion with various types of topcoats and gives superior topcoat
hold-out.
1. Features
Wide compatibility, excellent adhesion between layers, excellent
silver powder distribution and orientation, excellent pigment
dispersity
2. Applications
PU plastics, hardware aluminum powder paint, colored paint,
automotive 1K primer(can be used for rubber oil)
3. Properties
| Component | Appearance | Fe-Co Color | Viscosity Pa.s/25℃ | Non-volatile % | Acid value mgKOH/g | Solvent | Hydroxyl value |
| Acrylic copolymer | Clear | ≤1 | 3.5-7 | 50±2 | 2-6 | XYL/EAC/TOL | 60 |
- Compatibility and solubility
| XYL | + | BCS | + |
| TYL | + | CAC | + |
| BAC | + | IBA | + |
| CYC | + | NBA | + |
Remark:+ show soluble in/compatible in
5. Reference formula
| Aluminum powder paint (A) | Rubber primer (B) |
| (A component) |
| SE6530 | 65 | SE6530 | 45 |
| ZX1065 | 10 | SE6530 black wash | 30 |
| BBG-306 | 0.2 | BAC | 17.7 |
| BBG-052 | 0.1 | LTW | 2 |
| 20% CAB-381-2 | 5 | 20% CAB-381-2 | 5 |
| BAC | 19.7 | BBG358 | 0.3 |
| (B component) Bayer N3390 | A formula |
A component: B component: diluent=100: 8.2: 80~100
6. Process conditions
▲ Baking condition: (1) 65℃ x 60min
(2) Air drying
▲ Substrate: Sand plate tin
7. Test technical index
| Test Item | Test Method | Reference Standard | Test Standard | Test Result (reference value) |
| Surface drying | Blow cotton ball method | ------ | Not stick cotton ball | 5min |
| Hard drying | Finger pressing method | ------ | No finger print | 8h |
| 8h hardness | Pencil scratch | GB/T6739-96 | ----- | HB |
| 24h hardness | Pencil scratch | GB/T6739-96 | ----- | H |
| Gloss | 60 degree | GB/T9754-88 | ≥85 | 85 |
| Hardness | Pencil scratch | GB/T6739-96 | ≥HB | H |
| Adhesion | Cross – cut method | GB/T9286-98 | 100% | 100% |
| Silver powder distribution and orientation | Scraper method | ----- | Silver powder with high whiteness, uniform gloss | Excellent |
| Levelling property | Visual method | ----- | Flat and smooth, no shrinkage hole | Qualified |
| Alcohol resistance | Wiping method | -------- | No exposing base for 100 times (500g) | 23times (13μm) |
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.
