I need to agree to your comment.
Made the same way for cleaning: prewash - UV - wash - dry (2 days!) on daylight - primer (wait 24h) - paint (wait 24h) - topcoat - cracked after 1 day... wall thickness about 10 mm!!
For me this not a good way to work. To complex and not reliable in terms of outcome.
The hard resin is indeed like glas and sometimes I fight to remove the parts from build platform.
With the paint from FTD in it gets a bit weaker / flexible, which was ok for me.
From price view I do net see the benefit for this resin if the FTD F1+ Blends work fine - which needs to be confirmend.
Compared with the daylight resins from Photocentric for my liquid crystal printer the UV resin are much more worse to handle. Daylight resin is easy to clean under water, good to fill and paint. Daylight resin can of course not be used in UV based printer ...