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Description
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RWCA -28A for low hardness.
Excellent oil and chemical resistant for printing roller.
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| Hydroxyl value (mg KOH/g) |
59  3 |
| Acid value (mg/KOH/g) |
1.5-2.5 |
| Color (APHA) |
400  |
| Viscosity (CPS/ 40oC ) |
3500-8500 |
Packing |
RWCA -28A : weight 18 kgs OR 200 kgs
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Processing |
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Vacuum condition
| Vacuum
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|
0 -20 mm Hg |
| Temperature |
RWCA -28A |
60oC -70 oC |
| Vacuum time |
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30-60 MIN |
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Mixing temperature
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RWCA -28A = 60 -70 oC
TDI =room temperature |
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Casting
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Mold temperature 80 oC ,slow pouring to mold and avoid air bubble into mold, then
increasing mold temperature to 120 oC ,demold time 3 hrs,post-cure 16 hrs. |
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Physical properties
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| RWCA -28A (By weight)
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100% |
| T-80 |
8.5% |
| SHORE A
|
28A 3 |
| Tensile strength (kg/cm) |
11 |
| Elongation (%) |
500 |
| Type |
Polyester |
Storage & Shelf - life |
RWCA-28A are supplied in drums or cans. Once a container had been opened care
should be taken to exclude moisture. The most favorable temperature for storage is 20 -30 oC .The shelf-life of RWCA -28A is 6 months, if the temperature is maintained at 20 -30 oC .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 |
