Product Details

Printing Roller Material

Item no.: RWCA-28A

Key features：
- Low hardness: 28A
- Curing agent: TDI 80
- Excellent chemical resistance
- Outstanding oil resistance

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Product Introduction

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

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.

Taiwan PU Corporation is a professional printing roller material manufacturer, printing roller material producer. We supply high quality printing roller material products, have an experienced technical team and offer the best price to printing roller material.

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