quickrack Posted September 27 Report Posted September 27 I bought new bumper mounting screws. Black ones. And they are now rusty where I had the audacity, nay the unfettered gall, to touch them with a screwdriver......... Apart from spending a frankly ridiculous amount of time and effort to learn A) how to plate and buy everything needed to plate my own, is there a way to fix this? I'm not fussy really about it but IΒ mean they are days old. What will they be like when I need to remove the bumper in a year or threeπππ²π²πππ€π€πππ Abuse, advice or laughter welcomeΒ
Moderator Rally Pack 2000 Posted September 27 Moderator Report Posted September 27 Your using black bumper bolts on your chrome Mk1 bumpers?
quickrack Posted September 27 Author Report Posted September 27 No. I have several. This one is 1997 estate. The one for camping with the kids etc. (if all else fails the rear flattened out is more than big enough for kids to sleep in.)
Dave Knight Posted September 27 Report Posted September 27 5 hours ago, quickrack said: I bought new bumper mounting screws. Black ones. And they are now rusty where I had the audacity, nay the unfettered gall, to touch them with a screwdriver......... Apart from spending a frankly ridiculous amount of time and effort to learn A) how to plate and buy everything needed to plate my own, is there a way to fix this? I'm not fussy really about it but IΒ mean they are days old. What will they be like when I need to remove the bumper in a year or threeπππ²π²πππ€π€πππ Abuse, advice or laughter welcomeΒ π€£π€£π€£π€¦ββοΈπ€¦ββοΈπ€¦ββοΈπ€¦ββοΈΒ
accord83 Posted September 28 Report Posted September 28 phosphoric acid to turn the rust black, then Poundland satin black rattle can? Go Ghetto stylee and save money!π 3
Roman Hordan Posted October 28 Report Posted October 28 Black oxide screws are basically just a thin chemical coating with a bit of oil on top, so as soon as the driver bites into it you're back to bare steel. That's why they go orange so quickly. Mine have done exactly the same, so it's not just you. I'd go with accord83's idea, but I'd also touch up the bare bits with a dab of black paint on a small brush after the rust converter, then a smear of copper slip or grease on the threads when you refit them. That'll keep them from seizing in the bumper brackets, which is the real worry in a few years. If you're bothered about longevity, stainless button heads or zinc-plated ones painted black will outlast the cheap black stuff by miles. 1
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