aseanzip_boss · 1 hour agoBarrel Marks And Cat-Eye Defects is one of the recurring questions on finishing forums — and most first answers jump to a single fix. There isn’t one: the symptom has several causes, each confirmed differently.
Triage: symptom → confirm → first move
| Symptom | Likely root | Confirm by | First move |
|---|---|---|---|
| Shiny oval spot on one face | Contact mark from dangler/door | Face map vs barrel contact points | Rotate parts; pad door contact |
| Bare kidney-shaped patch | Parts nested face-to-face | Nested pair in load sample | Media ratio up; load size down |
| Line across several parts | Barrel door edge rubbing | Track along door line | Door liner check |
| Ring at part edge | Media imprint | Media type check | Change media size/hardness |
| Mark repeats every load, same parts | Part geometry self-shadows | By-part-family pattern | Family-specific load card |
The routine
- Photograph the part before touching it — the pattern is evidence
- Confirm by the column: don’t treat before you know
- Run one corrective action only; verify before the next
- Log everything on the tank card
Safety: Safety: barrels pinch and loads are hot. Guards closed, hoist rated, heat gloves; lock-out before reaching anywhere near the door.
Full version — fixes with parameter windows, FAQ and case study:
Barrel Marks And Cat-Eye Defects: How to Diagnose and Fix It Right | Q