Symptom: Oily or Tacky Surface

Possible Causes: What could cause this problem?

Improper additive formulation or contamination

Sample Testing Plan: How do you measure?

  • 1. Wipe or scrape surface to isolate material or direct analysis
  • 2. Measure residue or sample surface on single bounce ATR
  • 3. Measure reference part or sample with surface cut off

Data Analysis Plan: How do you identify the problem?

  • 1. Search libraries to identify material
  • 2. Adjust formulation or change process to avoid contamination