I got my CUREgel this past week and couldn't wait to give it a shot.
I am using a Form 2 primarily with engineering resins like Tough and Durable to prototype parts for a medical device (in R&D).
I have now had 2 runs of parts using the CUREgel. All of the parts so far have been produced using Durable resin. In the past I have had uneven curing issues - some have probably been from contaminated IPA or incomplete cleaning, but some have probably been due to oxygen cure inhibition.
Previously I was water-curing but this was not exactly ideal. Water absorbs a significant amount of UV energy, so there have been times I suspect parts have been incompletely or unevenly cured.
Now for CUREgel - so far it has been great. I have used the included spatula and my gloved hands to apply a thin film. Another post pointed out some brushes - that seems like a good idea. It can be difficult to get a nice, thin layer on parts evenly because of the consistency of the gel. Regardless, I have had a small number of parts cured using the gel. It seems like I am getting a much more even cure with less yellowing of parts. I can't wait to try it out on some Tough resin parts. Once they are done I have rinsed them with water and have not had any issues with residue. It does take a fair bit of rinsing, but not painfully so.
So far so good - I'm liking it. I will report back once I have tried out some Tough resin - this has historically been the more problematic resin for me.