Due to a rather traumatic time with some brake fluid and a freshly painted kit car 30 years ago I have used expensive silicone brake fluid on my build.
It has taken a lot as I had a few leaks, and even more now as after a recent rolling road session they undid the brake union to see if it was a stuck caliper causing a rear lockup.
My former garage owner friend advised me that modern normal brake fluid does not appear to damage paint so badly as in the past. Also, it would help with pressure bleeding the brakes if required as I doubt any garage would have a silicone filled pressure bleeding system as well as a normal one.
As far as I understand you can go from silicone to normal fluid but not back.
It has taken a lot as I had a few leaks, and even more now as after a recent rolling road session they undid the brake union to see if it was a stuck caliper causing a rear lockup.
My former garage owner friend advised me that modern normal brake fluid does not appear to damage paint so badly as in the past. Also, it would help with pressure bleeding the brakes if required as I doubt any garage would have a silicone filled pressure bleeding system as well as a normal one.
As far as I understand you can go from silicone to normal fluid but not back.