Rust stains in gelcoat

[P2]

Hi
Does anyone have any suggestions for removing rust stains from a gelcoat surface?? TX

 

[Gary H NC]

Re: Rust stains in gelcoat

I just went thru the same problem.try some stuff called Whink rust stain remover.Its at the grocery store or Ace hardware.If that does not work get some Starbrite hull cleaner from Walmart.Between the 2 they will come off...

 

[ondarvr]

Re: Rust stains in gelcoat

Some of the stain removers from the store may work, but if they don't try some Ocsylic (spelling?) acid, it works very well. Pool supply stores sell it, one product is marketed as Cobalt Cure, made by United Chemical. It does a very good job of removing dark stains from the inside of a dishwasher also.

 

[Gary H NC]

Re: Rust stains in gelcoat

Thats the main ingredient in the Starbrite hull cleaner also..

 

[ondarvr]

Re: Rust stains in gelcoat

Gary

Did I spell it correctly?

 

[burroak]

Re: Rust stains in gelcoat

Gary

Did I spell it correctly?

I think it's oxalic acid.

 

[ondarvr]

Re: Rust stains in gelcoat

burroak


That spelling looks better.

 

[burroak]

Re: Rust stains in gelcoat

burroak


That spelling looks better.

I just happen to have a jar of the stuff in the garage.

 

[Fl_Richard]

Re: Rust stains in gelcoat

Sprinkler rust remover. Home Depot $3.99 a gallon.

Exact same Oxalic Acid. Much cheaper!!