- Group A
Grade | Butyyral, Wt,% | Hydroxyl, wt,% | Acetyl, wt, % | Viscosity, cps | Free Acid | Volatile,wt,% |
PVB 82HX | 7582 | 1822 | 3 | 60100* | 0.05max | 3 max |
PVB 91HX | 7682 | 1821 | 3 | 110180** | 0.05 | 3 max |
PVB 93HX | 7682 | 1821 | 3 | 70100** | 0.05 | 3 |
PVB 94HX | 7682 | 1821 | 3 | 4070** | 0.05 | 3 |
PVB 91SY | 8186 | 1114 | 5 | 100160** | 0.05 | 3 |
PVB 93SY | 8186 | 1114 | 5 | 3080** | 0.05 | 3 |
PVB 94SY | 8186 | 1114 | 5 | 1030** | 0.05 | 3 |
Major applications:
- Wash primers
- b. Paint:Heavy duty paint and industrial coatin
- Ceramic binder: Civil engineering, electronic capacitors.
- Coating:primer or adhesion enhancers for various substrates.
- Adhesives: adhesion or enhancers for various applications.
b.Group B
Grade | Butyyral, Wt,% | Hydroxyl, wt,% | Acetyl, wt, % | Viscosity, cps | FreeAcid | Volatile, wt,% |
PVB 87 TX | — | 1418 | 2 | 150220*** | 0.05 | 3 |
PVB 88 TX | – | 1418 | 2 | 100150*** | 0.05 | 3 |
PVB 89 TX | – | 1418 | 2 | 60100*** | 0.05 | 3 |
Major applications:
- Copper foil laminates: Binder for copper foil and Epoxy laminates
- b. Printcircuit board
c.Group C
Grade | Butyyral, Wt,% | Hydroxyl, wt,% | Acetyl, wt, % | Viscosity, Cps | Free
Acid |
Volatile, wt,% |
PVB 1723 | | 18.520.5 | 2 | 60150* | 0.05 | 3 |
PVB 96HX | 7682 | 1821 | 3 | 1030** | 0.05 | 3 |
PVB 96TX | 8085 | 14.517.5 | 2 | 2326**** | 0.05 | 2 |
Major applications:
- PCM1723:Used for the film o safety glass film.
- PCM 96 HX:Used for printing ink
- PCM 96 TX:Used for the primer of special optical film like Xray film
Note:
*: 5 % solid content in ethanol at 20C using Brookfiled viscometer
**10% solid content in toluene/ethanol 1/1 at 20c, using Brookfiled viscometer
***5% solid content in toluene/ethanol 1/1 at 20C, using Brookfield viscometer.
****10% solid content in ethanol at 20c using Brookfiled viscometer.