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If the frame is smooth and flat you’ll be able to get a prefect edge & wipe off the excess from the frame using silicone tools
dbr-
unfortunately no the frames are rough in places despite being stripped, plan is to paint the release agent on the frame and try and gauge the correct amount of silicone for the gap and then close the window wiping off any silicone that spills over the lip of the frame with a tool or wet finger.
bit difficult to explain without seeing the frames, they centre tilt so the gaps get bigger the further away from the hinge.looked into getting the frames straightened but that involves their removal, fitting ply in their place, then back at the factory having glass removed and through heat/percussive persuasion straightening them but without having the outer frames to check they fit. then glass refitted.
the cost was nuts as was the experts doing what i’m about to do!
Mr_Smyth
I need a release agent for silicone that i can accurately brush onto painted metal windows.
Am thinking vaseline but need to thin it slightly but not with a solvent that will attack the metal paint (dulux metalshield)
Will be using colour matched silicone to fill the gaps on large crittall opening frames that are distorted so the gaps can be 5mm tapering down to .5mm so not something I can do with conventional rubber strips.
Did wonder if silicone spray stops silicone adhesion? you can use cling film but its a faff and wrinkles making a poor seal.