That Hodgson's product, (which doesn't seem to be on their website), contains 'drying oil', typically Linseed oil, rather than being the non-setting, (i.e non-curing), butyl based 'putty'.
Any cartridge silicone you can buy will have poor long term adhesion to unprimed Crittall windows.
You are better off with a tube of modified silicone. Support a firm that supports your favourite sport and treat yourself to some Soudal Fix-all.
Got some high modulus stuff from a glazing company specifically for the job. Frames have been stripped/mordant solution/zinc plumbate primed and painted.
This is for the inside not outside BTW.
That Hodgson's product, (which doesn't seem to be on their website), contains 'drying oil', typically Linseed oil, rather than being the non-setting, (i.e non-curing), butyl based 'putty'.
Any cartridge silicone you can buy will have poor long term adhesion to unprimed Crittall windows.
You are better off with a tube of modified silicone. Support a firm that supports your favourite sport and treat yourself to some Soudal Fix-all.