Troubleshooting Guide - Pressroom Coatings

Issue: Sheets Curling

Potential Causes

Stock is absorbing too much water from coating

Solution: Resort to a 'high solids' coating to apply less water.

Excessive heat applied after coating

Solution: Check for proper load temperature. Do not exceed 105 degrees F.

Substrate too light in weight

Solution: Use substrate of 80lbs or higher. Run the coating as near to the edge of the sheet as possible to provide a uniform size change in the sheet.