Diluting or thinning uncured Milliput Is it possible to dilute, thin or liquefy Milliput so that it flows into nooks and crannies better?

If so, is there any advice on what to use, in what ratios, and whether it will adversely effect the strength of it when it cures?

I'm trying to use it to fill gaps in 3D-printed parts where the stepper motor might have skipped or the filament just didn't bind for some reason.
You can use water to dilute it.

Here someone suggest adding a little soap with the water, as this will not only let it mix better, but also increase the drying time, although I think this might be detrimental for the structure.

Note however, that some users complain about the manipulation of this mix (e.g. here: "I tried [to] dilute Milliput and although it worked (sort of) it was messy and time consuming").
The ratio really depends on what you want to achieve - what works best for your application. I suggest experimenting with the amount, slowly adding more, until it behaves the way you want it to.




Alternatively, you can opt for using ProCreate Putty, which I saw mentioned here, and sounds like something that acts a bit more like you would expect of a watered down putty.



Additional sources:
http://www.40konline.com/index.php?topic=32579.0
https://privateerpressforums.com/showthread.php?76994-Milliput-knowledge-please
https://www.planetfigure.com/threads/thinnin-milliput.24159/
https://themostexcellentandawesomeforumever-wyrd.com/topic/79094-liquid-greenstuff/