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Old 08-21-2003
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rust in non metallic sinks

I am sailing on a friend''s Beneteau First 285 that has some serious rust damage in the sink located in the head. They tried using some type of cleaner, possibly cleanser, but made it worse. Now they are planning to order a new sink. Is there some type of cleaning product to safely remove rust stains from fiberglass/non-metallic sinks onboard? Please email me. I sincerely would appreciate it a great deal.
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Old 08-21-2003
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rust in non metallic sinks

Sure. West Marine has rust remover in a spray bottle. Extremely effective. The liquid is clear and has the viscosity of water. I am not sure what chemical it is, but spray it on the fiberglass and the rust "disappears". If the rust is thick, it may take some light brushing and several applications. If the rust is surface, one squirt and its gone.
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Old 08-21-2003
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rust in non metallic sinks

Oxalic acid. Buy it at a hardware store in crystal form. Definitely use gloves.

Rinse, then WAX the sink to keep the iron and tannin stains from penetrating again into the porous gelcoat.

Also use it to remove the "brown moustache" on the bow and along the waterline.
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Old 08-21-2003
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rust in non metallic sinks

Flitz Metal Polish does great on fiberglass and plastics in general. I''ve had good luck using it on the boat to clean Formica, the fiberglass sink in the head, even the plastic Beckson portlights. One year Flitz had a booth at the Annapolis show to demonstrate all the uses of their product. I now keep a tube onboard right along side my can of Sailkote.
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