Two products from the previous trial were identified for further testing on client supplied parts. While all 6 previous products showed potential, products were picked for more extensive testing based on performance, EH&S and possible cost considerations. Circular steel parts approximately 6 inches in diameter with resin on them were immersed in the two solutions of 100% concentration at room temperature, approximately 68F.
The parts were allowed to sit in the solution to determine what effect the cleaning products would have on the resin. Observations were made at 60, 120, 180, 240 and 300 minute intervals as well as overnight. Any signs of interaction between paint/resin and cleaner were recorded.
Both the Rochester Midland and Spartan products worked. The cleaners soften the resin on the top which allows it to be wiped or scraped off in increments. These two will be tested warm, at 120F to see if this will speed up cleaning time.