Rust Stains in White GelCoat

[WaterZebra]

Any ideas on how to remove? Been trying to use CLR and a brass bristle brush.

[moatorbotin]

toilet bowl cleaner has always been my go to

[allaction]

On off

[DeerHunter]

Any ideas on how to remove? Been trying to use CLR and a paint roller for smooth finish (https://howtomakebrown.com/best-paint-roller-for-smooth-finish/).
I wouldn't advise it. Vinegar is fine for the steel, but it *might* react strangely with what appears to be urethane on the heads.
Unless the OP isn't bothered by hazy/discolored dbell heads. In that case, proceed with the full baptism.

[VkingMike]

toilet bowl cleaner has always been my go to


On off

These are both the go to for me as well on my center console

[TraceF3]

I use Rust-Off a product used mostly for taking the rust from well water off of houses. About $10/gal at HD

[Jim Speros]

On off

By MaryKate. The best hull cleaner hands down.

[KIRCHNER]

MR. CLEAN MAJIC ERASER worked better than anything i tryed

[Capt j]

Whink from the laundry cleaner aisle of the grocery store. Wet gelcoat, put Whink on it, watch the rust stain disappear, rinse off. Cheap and safe.

[Capt j]

By MaryKate. The best hull cleaner hands down.

Yes and very toxic........don't get it on your aluminum trailer or any metals on the boat or it will etch them.......plus the fumes are crazy.

[WaterZebra]

Whink? Never heard of it! Thanks a ton for the tip! Ordered some today..............

[Jamessmith0901]

I tried it and found it to be a quick and easy solution. I appreciate your helpful suggestion. Thank you for sharing!

[Mark Poole ModVP]

Years ago I ordered the solid buffing bars from Mini Craft. From what I understand this is a rouge type compound used mainly for polishing metal but it works wonders on gel coat. The orange clay color bar is the heavy cut, the white is medium. The medium worked great for everything I needed.