Superior prides themselves on their castings looking so good they don't need paint. I was in their facility last week and I agree, their cylinders look great on the bench. Run them awhile and they collect dust and grime and they aren't as pretty, but they look as good as any painted cylinders. Lycoming paints their cylinders so I don't think it makes any difference other than cosmetic. But some guys pay Lycoming $2k extra to polish the fins on painted cylinders. Its all about what matters to the guy writing the check. Me? I'm ordering a new Lycoming today and it'll have standard Lycoming gray painted cylinders.brand new Superior cylinders, should they be painted prior to installation?
Heard yes, and I've heard no.
Which do you believe?
Superior cylinders are alodine treated for corrosion lycoming are not, Hence the need for paint, polished fins are a PIA just like polished motorcycle parts lots of elbow grease to keep looking good.I wish new Lycoming cylinders were available unpainted.
The steel barrels are painted fins are alodined usually alodine has light gold or yellow tintbut....they are painted.
Kinda, halfway - huh!but....they are painted.
There is a type of Alodine that leaves no stain.The steel barrels are painted fins are alodined usually alodine has light gold or yellow tint
Something like Alodine 1500There is a type of Alodine that leaves no stain.
who is paying?....and how much?
will someone pay more or less for the painted ones?
Very clean, nice pics, the way it should be
As I recall from chem class several decades ago, the yellow alodine gets its color from a chromate solution, while the clear uses something other than chrome to passivate the metal underneath. The chromate seals better but is environmentally horrible.There is a type of Alodine that leaves no stain.
According to the link I posted earlier....As I recall from chem class several decades ago, the yellow alodine gets its color from a chromate solution, while the clear uses something other than chrome to passivate the metal underneath. The chromate seals better but is environmentally horrible.
Jim
Alodine® 1500, is also a registered trademark of Henkel Surface Technologies
and is a chemical treatment process for aluminum used to provide corrosion protection
and as a surface preparation for paint and adhesives. Sometimes called “aluminum
passivation,” it contains hexavalent chromium and is intended to provide corrosion
prevention even when left unpainted.
ain't the internets grand?.....bless ole Al G.According to the link I posted earlier....