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can someone tell me what is it on the aluminium trim is it corrosion or something else
than you
Hello @brinkley
Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about your aluminium shower frame.
What you are possibly seeing are calcium deposits, soap scum or corrosion caused by chemical damage. I propose getting a green scrub pad and see if you can remove the stain at the bottom of your shower frame. If it feels smooth with the scrubber and none of it peels off, odds are the surface has been damaged.
This sometimes happens when very strong cleaning chemicals are used. It strips the protective coating of the polished aluminium and delaminates the surface. You can try to remove the blemish with steel wool, but you will never get the original polish back.
If you need further assistance, please let us know.
Eric
