+ Printing Roller Material
+ PU Casting Material for Printing Roller
Printing Roller Material
Item no.: RWCA-28A
- Key features：
- Low hardness: 28A
- Curing agent: TDI 80
- Excellent chemical resistance
- Outstanding oil resistance
| Application |
|---|
| Ink rollers, printing rollers, electronic industry and other industrial materials. |
| Technical Product Data |
|---|
| Hydroxyl value (mg KOH/g) | 59 ± 3 |
| Acid value (mg/KOH/g) | 1.5-2.5 |
| Color (APHA) | 400 ↓ |
| Viscosity (CPS/40℃) | 3500-8500 |
| Processing |
|---|
| Vacuum condition |
| Vacuum | | 0 -20 mm Hg |
| Temperature | RWCA-28A | 60℃-70℃ |
| Vacuum time | | 30-60 MIN |
| Mixing temperature |
|---|
RWCA-28A= 60-70℃
TDI 80 = Room temperature |
| Casting |
|---|
| Mold temperature 80℃. Slowly pour the mixture in mold and avoid air bubble into mold. Then, increase mold temperature to 120℃. Demold time is 3 hours, post curing time is 16 hours. |
| Physical properties |
|---|
| RWCA-28A (by weight) | 100% |
| TDI 80 | 8.5% |
| Hardness (SHORE A) | 28A |
| Tensile strength (kg/cm) | 11 |
| Elongation (%) | 500 |
| Type | Polyester |
| Production Processing |
|---|
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| Packing |
|---|
| Printing roller material RWCA-28A: Net weight 18 kgs can / Net weight 200 kgs drum |
| Storage & Shelf - life |
|---|
Printing roller material RWCA-28A is supplied in drums or cans. Once a container has been opened, please pay attention to exclude moisture. The most favorable temperature for storage is 20-30℃. The shelf-life of RWCA-28A is 6 months if the temperature is maintained at 20-30℃, and moisture is excluded. The information and data contained herein are believed to be correct. However, no liability is accepted. We preserve the right of revision for this information sheet.
Notice: These values are based on the test of our present laboratory test specimens. |
****We cordially invite you to access our following website to know more about our
printing roller material -https://www.taiwanpu.com/en/product/Casting-CPU/Printing-roller-material?page=1&rtnKind=Casting-CPU?kindt=true
