I just switched over to TPM and am not impressed. I have two form washes going, one with fresh TPM and another with water and a little dish washing detergent (per Formlabs). My Tough 2000 prints are coming out very waxy as though are completely saturated with TPM. Supports are like soft spaghetti. I let the parts dry for 48 hours and they are still very tacky and waxy with a very soft surface.
The TPM itself is a rather oily and tacky chemical. It cannot be used for cleanup. One benefit of IPA was being able to dip the spatula into the IPA and wipe it off for example. Small drops of resin needed only a paper towel dipped in the tank to perform cleanup. This stuff is difficult to cleanup by itself and it doesn’t seem to evaporate at anywhere near the rate of IPA (which is good and bad).
Our previous process was to print Tough 2K and wash with IPA. Let air dry one day, wet sand supports off with 400 grit, rinse, let dry, and then bake in Form Cure or a Curebox. The parts, after washing in TPA, simply will not allow wet sanding. They are way to soft. It would be like sanding a warm candle. I am concerned about leaving fingerprints on the parts - it is that soft. It is coming out of TPM like it was washed in over-saturated IPA.
I will keep experimenting with TPM, but right now I wouldn’t recommend it unless you were like us and couldn’t find IPA in quantity anywhere. It cost us close to $400 for 5 gallons too (incl. shipping).