Refurbish old Wagner HVLP spray unit

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IMG_0340.JPGIMG_0339.JPGIMG_0341.JPGHi,
I have an old Wagner HVLP spray unit that I want to refurbish. It is still working but the gasket for the pot to gun was missing. I tried to make one but ended in a mess as leaked badly. Can anyone advise on where I could get the right material for the gasket? Also looking for advise in cleaning the old lacquer of it. I'm not painter but looking to learn.
Cheers,
Nick

[China]

Have you tried here Wagner Australia :: Home Page

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Tried but never found them referencing the older models

[Arron]

You can buy ‘gun cleaner’ for cleaning the gun. Lacquer thinner should do it just as good.

I just soak the gun (disassembled) in a jar with thinner. Avoid soaking rubber seals etc.