Film Coating Voids

low
film
coating

Tiny no-ink pits repeat at reel positions—manufacturing defect.

Likely Causes

  1. Manufacturing defect in the film coating: Inconsistent coating application at the factory.

Quick Checks

  • Index film by 1–2 ft; see if pattern repeats.
  • Change to new roll; compare.

Step-by-Step Fix

  1. RMA defective roll; record lot/position — Removes root cause

Acceptance Criteria
  • No repeating pits on new roll