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Bonhams Auction Stafford
Oddjob:
You are correct in saying there is paint around the studs. Around the drain hole as well IIRC.
Whatever the finish is on the back, might be zinc sprayed for instance, underneath appears to be bare steel. I seem to remember that Duraglit took the finish off as well, remember that stuff?
That was genuine 323 UK version pipes not the 374 version with the writing on the back.
AshimotoK0:
--- Quote from: Oddjob on September 06, 2023, 12:49:44 AM ---You are correct in saying there is paint around the studs. Around the drain hole as well IIRC.
Whatever the finish is on the back, might be zinc sprayed for instance, underneath appears to be bare steel. I seem to remember that Duraglit took the finish off as well, remember that stuff?
That was genuine 323 UK version pipes not the 374 version with the writing on the back.
--- End quote ---
Mine are 374's but I had a set of decent original 323's that came off a low miler 500K0 that I sold to my mate Jim. They were deffo chrome plated on the back. I don't think zinc plating would have come into it either because the two processes just don't mix. Having said that, I have always wondered if you could brush plate areas of chrome on used parts to protect areas that have had the chrome removed because of corrosion or peeling on areas are not seen when mounted on the bike.
K2-K6:
I think it was aluminium paint, as in real aluminium content within the liquid, presumably very fine powder to be held in solution.
Zinc would have heat problems and gives off fumes when over temp. Always amuses me when they "upcycle" something galvanised on these trendy programs, making a bbq out of something heavily zinc coated. Not particularly good to be breathing that stuff while cooking your food :-[
My grandad had pots of real aluminium paint, and painted anything with it, Nan was lucky to escape the silvery onslaught :D
AshimotoK0:
--- Quote from: K2-K6 on September 06, 2023, 08:29:13 AM ---I think it was aluminium paint, as in real aluminium content within the liquid, presumably very fine powder to be held in solution.
Zinc would have heat problems and gives off fumes when over temp. Always amuses me when they "upcycle" something galvanised on these trendy programs, making a bbq out of something heavily zinc coated. Not particularly good to be breathing that stuff while cooking your food :-[
My grandad had pots of real aluminium paint, and painted anything with it, Nan was lucky to escape the silvery onslaught :D
--- End quote ---
So are you saying the rear of the silencer was painted silver Nigel or just the areas like the mounting studs or drain holes? I did have a tin of 'Galvofroid' (or similar name) an old school electrician gave me that he used to use on rethreaded gas pipes.
K2-K6:
I don’t know for certain Ash, but all the items I've seen appear to be consistent in this respect.
It seems to be used not as replacement in total but as ad-hoc coverage when chroming hasn't fully been brought to perfect coverage and mostly on less seen parts. Almost like a production quality control "catch all finish" to avoid scrapping/ rechrome operation.
Often seen on underside of items like rear brake pedal on the foot plate pressing, with the virtual cavity that produces.
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