Technical Field Audit Checklist

Industrial Applications Purpose: On-site diagnosis of surface protection failures.

Is there "Edge-Ooze"? (Adhesive squeezing out the sides of the roll).
- Diagnosis: The roll was likely stored in a high-heat area or has been under too much winding tension.
- Solution: Recommend temperature-controlled storage or grade with a firmer adhesive.
Is there "Telescoping"? (The center of the roll is pushing out like a cone).
- Diagnosis: Improper handling or high-speed unwinding on the applicator.
- Solution: Check applicator brake tension; ensure rolls are stored horizontally.

Issue: Bubbling during the pierce.
- Check: Is the film "Laser-Grade"?
- Check: Is it a Fiber Laser?
- Recommendation: R0601FO. Standard PE films cannot handle the gas-assist pressure of a Fiber Laser.
Issue: Heavy dross or "fused" edges.
- Diagnosis: The film is melting instead of vaporizing.
- Recommendation: Switch to FO rated film. If using Fiber, ensure the film is specifically "FO" rated.

Issue: Adhesive Transfer / Ghosting (Sticky residue left on the metal).
- Check: How long has the film been on the metal? (Dwell time).
- Check: Has the metal been stored outside?
- Diagnosis: UV degradation.
- Solution: control the environmental factors for storage.
Issue: "Tunneling" (Film lifting in long bubbles).
- Diagnosis: The film was applied with too much tension (pre-stretched). As it tries to "shrink" back to size, it lifts off the metal.
- Solution: Loosen the tension on the customer’s laminator/applicator.

Issue: Film falling off.
- Check: Is the surface textured or matte-painted?
- Diagnosis: Low-tack film cannot "grab" a rough surface.
- Solution: Recommend a higher-tack higher-adhesion grade.