Substance removal on hull

[bhilbs1]

I recently bought a 2004 Ranger Riata that was not cared for the way it should have been. The hull has a brown buildup on it that I haven’t identified. I’ve tried just about everything to get it off with no success. I’m ready to break out the sander but I’m worried I will do more harm than good

any suggestions are welcome

[Tidewater Bass]

Maybe someone that details cars could buff it off with a rubbing/polishing compound?

[bill.s]

That looks like someone ran the boat thru an oil slick. I'd try Acetone on a rag and follow up with some stuff I used to use on my white hulled Ranger called Off-On. I think it is a mild muriatic acid and requires a respirator (kind with canister filters, not just a paper mask) and some rubber gloves. Cleans up those orange hulls after fishing muddy waters quite well.

[ecoast]

oven cleaner

[Snakebit95]

Not sure what is on your hull, but for removing the nasty stains when the river is running brown in my area, I use Starbrite Hull Cleaner. I use a small spray bottle to evenly apply it. Keep it away from your face and do not breathe it in. Its pretty stout stuff, but does a great job cleaning the hull. Afterwards, I wash the hull good with soap and water and then apply a coat of wax.

[Snakebit95]

You may want to carpet those bunk boards too. Raw wood can be tough on that glass hull.