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Blisters & Bubbles Print

Problem:

Blisters or Bubbles

Possible Cause:

(1) Overheating/heating sheet
(2) Excessive moisture

Suggested Course of Action:

  • Lower the heat temperatures or reduce the top too rapidly heater temperature/increase the bottom heater temperatures if using sandwich heaters.
  • Increase the distance of heater from the clamped sheet.
  • Pre-dry the sheet
  • Pre-heat sheet
  • Use sandwich heaters (heat on both sides)
  • Do not remove the sheet material from moisture-proof wrap until ready to use (re-wrap when not in use)