Thank you for the offer ,Agree with dcals suggestion. How quick to you need them coated? I can cerakote mc5100 these for you for £10+ postage. They'd be vapour blasted before coating.
Exactly this.Leave it as it is. Shiny bright ali just furrs up again. Aluminium has excellent corrosion resistance because it spontaneously forms a thin but effective oxide layer that prevents further oxidation. And aluminium oxide is impermeable
Is the coating they did clear? It might be nyalicExactly this.
They already have a protective finish that has formed and it looks good. Under the car where you can't see them, leave them alone. Blast that finish off, expose nice new fresh reactive aluminium, and it will corrode.
Now if it was visible, part of the bodywork, then I might have a different answer - I wanted some bits for mine anodised, but the metal finishing place I went to suggested another treatment which 6 yrs later looks as good as it did when I got them back - problem is, I can't remember what it was!
Yes, it is a nightmare for me on the boats, just eats the alu away when people don't think on how they fix stuff to it. I am about to repair a gantry on a boat that had steel pond boards bolted directly to them.This is the type of galvanic corrosion I'm talking about, where a badly painted steel bracket is bolted to alloy.
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Anodising is probably a good solution if the alu is a suitable grade and you have the means of anodising.
Yes, I was really meaning the parts the OP posted about, they look small enough to easily anodise, whether the grade of alloy would be suitable or not is a different matter.I agree, but for big lumps of unknown grade, like gearboxes, a coating is probably more practical.
It is a bit mad to be painting suspension bits on a shed but if you don't experiment you don't learn.
Yes, it is a nightmare for me on the boats, just eats the alu away when people don't think on how they fix stuff to it. I am about to repair a gantry on a boat that had steel pond boards bolted directly to them.
So depending on series, at the least it's 24 yr old - so whatever is on that bracket, its not looking bad - I still say you won't improve on it.Brackets/bush holders are bolted to underside of floor so lots of surrounding steel and lots of moisture and salt in this part of the world.
Had to cut them out of the galv spring links as the bolts were seized in the bushes.
Will be dropping tank too, thankfully that is plastic. New tank straps are stainless just to add that into the mix too
An old saab 900 for reference.
But that doesn't look bad - and the corroded bit where the metal bracket is bolted is more likely due to the failure of the coating on the steel part.