Symptom: Material too hard or too soft

Possible Causes: What could cause this problem?

Improper formulation: co-polymers, placticizers, fillers
(>1% by weight)

OR (choose one)

Improper formulation: low-level additives (<1% by="">

Sample Testing Plan: How do you measure?

  • Measure directly using single-bounce Diamond, ZnSe or Ge* ATR
  • May require cutting away top surface to expose interior


*Ge for carbon-filled polymers

Data Analysis Plan: How do you identify the problem?

  • 1. Calculate peak height or area ratio
  • 2. Verify co-polymer ratios
  • 3. Adjust formulation and check ratios routinely