Inspection of Automotive EPDM Rubber
Ultran performed a correlation study for Cooper Standard to measure the level of cure for EPDM rubber. Analyses included imaging a number of samples of EPDM at various cure levels and assessing correlation between NCU transmittance and level of cure.
The results demonstrated that, for analysis performed at 2 MHz ultrasonic frequency, a significant correlation existed between cure level and transmittance.
Analysis was conducted using a blind study methodology where each sample was unmarked to hide any cure level information.
EPDM Cure Level Analysis performed for Cooper Standard Automotive
Sample Numbers Randomized for Cure Level