Causes
- Insufficient acid resistance of the roll cover
- Solvent resistance of the roll cover too low
- Change in coating properties due to aggressive media
Effects
- Roll cover becomes cracked / brittle
- Roll cover becomes soft / sticky
- Washing out on the cover surface
- Product contamination
- Core loosening from cover fabric
Many products pass through degreasing baths, pickling and rinsing. There, dipping, deflecting, squeezing, and carrying rolls are used and guide the product through the plant segments. These rolls are in contact with the aggressive media used in these baths and become soft, sticky or cracked and the surfaces can be washed out.
Only coatings that are optimally matched to the process chemistry ensure a long service life and optimized squeezing results.
