PNW Components Silver Stanchion Dropper Post

Dang that's cool , I thought about trying to polish a one up dropper but was concerned about making it more sloppy than it already is lol . I think I have an old one with some wear marks , sounds like a good candidate to experiment.
 
Ryan.P said:
Dang that's cool , I thought about trying to polish a one up dropper but was concerned about making it more sloppy than it already is lol . I think I have an old one with some wear marks , sounds like a good candidate to experiment.
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Interesting. How are you planning to remove the anodized layer? Maybe you can use oversize seals to compensate for the loss of material.
 
serviceguy said:
Interesting. How are you planning to remove the anodized layer? Maybe you can use oversize seals to compensate for the loss of material.
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Anodization (type 2) is typically <.005 inches thick not likely to have seals sized that close together to take up that minimal of a gap. And some (i believe it's approx 50% of the total thickness) is a penetration into the base material making it <.005 on the diameter.
 
shrpshtr325 said:
Anodization (type 2) is typically <.005 inches thick not likely to have seals sized that close together to take up that minimal of a gap. And some (i believe it's approx 50% of the total thickness) is a penetration into the base material making it <.005 on the diameter.
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It depends how he plans to remove the anodized material, chemically? Mechanically? Lathe, sand paper… that is .125 mm so it may affect the seal effectiveness. I think.
 
serviceguy said:
It depends how he plans to remove the anodized material, chemically? Mechanically? Lathe, sand paper… that is .125 mm so it may affect the seal effectiveness. I think.
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Is there anything you don't overthink lol . Certain oven cleaners will remove anodizing pretty effectively according to the couple youtube videos I saw . Then it's just sand and buff .
 
serviceguy said:
It depends how he plans to remove the anodized material, chemically? Mechanically? Lathe, sand paper… that is .125 mm so it may affect the seal effectiveness. I think.
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As an engineer I can say....no. mfg tolerances are not going to be that tight on rubber seals and they will run smaller than the nominal shaft diameter
 
Ryan.P said:
Is there anything you don't overthink lol . Certain oven cleaners will remove anodizing pretty effectively according to the couple youtube videos I saw . Then it's just sand and buff .
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Answer to the first question is no. I did use oven cleaner to remove anodizing from a crankset and it did work great but it left the surface rougher than I would use against a rubber seal. It may depend on the finish prior to anodizing, but you sanding and buffing do I guess that will take care of that…
 
serviceguy said:
Answer to the first question is no. I did use oven cleaner to remove anodizing from a crankset and it did work great but it left the surface rougher than I would use against a rubber seal. It may depend on the finish prior to anodizing, but you sanding and buffing do I guess that will take care of that…
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anodizing penetrates the base material to some degree so if you can remove it all you will have some porosity, if its enough to be noticeable i couldnt say, but it wouldnt surprise me at all
 
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