I need to make a set of the mounting channels for a neo-angle shower stall. I have the doors and the side channels, just not the upper and lower pieces. Gong through the dealer chain just didn't work.
I can get a standard channel section that will work, plan to notch and weld the 2 joints per piece. Weld area will not be visible so HAZ and weld material is not an issue. So how do I get a matching polish level on the new pieces? Is there a surface finish applied when done?
Sand with progressively finer sandpaper, wetted with kero or WD40 until you get to 600 grit, then polish on a buffing wheel with compound.
These channels are AL with an anodized finish probably? If so, the short answer is you aren't going to match the finish short of stripping and re-anodizing the whole thing. A better plan would be to machine up some close fitting inserts and screwing the connections together.
Impossible to offer any meaningful assistance without a good photo of the finish you seek to match.
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