PKSC 4300: Roller Coating exam
1. What are the types of flexible coating?: 1) liquid coating
2) extrusion coating
3) Vacuum coating
2. All roller coaters have methods to and the coating: apply and meter
3. The surface and coating should be prior to coating: compatible
4. Coating must have the correct to ensure proper for
process: viscosity and flow characteristics
5. Why is viscosity important for roller coating?: - too low viscosity means the coating flows to
quickly and doesn't stay on the substrate
- too high viscosity means the coating flows slowly and doesn't transfer to the substrate
6. What are the two type of coatings?: 1) Requires drying: solution, emulsion, and suspension
2) Doesn't require drying: solventless
7. What are the non-roller coating options?: - knife over roller
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1. What are the types of flexible coating?: 1) liquid coating
2) extrusion coating
3) Vacuum coating
2. All roller coaters have methods to and the coating: apply and meter
3. The surface and coating should be prior to coating: compatible
4. Coating must have the correct to ensure proper for
process: viscosity and flow characteristics
5. Why is viscosity important for roller coating?: - too low viscosity means the coating flows to
quickly and doesn't stay on the substrate
- too high viscosity means the coating flows slowly and doesn't transfer to the substrate
6. What are the two type of coatings?: 1) Requires drying: solution, emulsion, and suspension
2) Doesn't require drying: solventless
7. What are the non-roller coating options?: - knife over roller
1/2
