Cleaning AwlGrip white non bottom paint

[Vezo, Part II]

My 1977 Seafari painted Ice Blue hull sides and Oyster White top and bottom sides. Water line is dark with tannins from Hernando Beach canal. Mary Kate’s On/Off hull cleaner not cutting it mixed with small amount of water. Label says for fiberglass only (gel coat?). Not sure if I should go full strength. Any thoughts? TIA

Michael.

[NoBones]

Try Snowbowl....
If that does not cut it muriatic acid...
Try a small area first on the bottom, just be quick to rinse off with
fresh water, and stay away from any metal...
I have used the muriatic on the "Bones" with the Fighting Lady Yellow Awlgrip with good results !

When you go to buy it just do not be buying batteries at the same time...
They will think you are making meth !

[Capt Chuck]

Rustaid
Wil also do the trick. Spray on full strength, in just a few minutes ""poof"" all gone. Less than $10 @ Homers, Lowes & Wallyworld.... I've used it for years. Works on sprinkler stains on the sidewalks etc. For us old geezzers, i bet you can gargle with it..

[NoBones]

Originally Posted by Capt Chuck

I've used it for years. Works on sprinkler stains on the sidewalks etc. For us old geezzers, i bet you can gargle with it..

You mean when your dentures are in the glass next to the bathroom sink.

[Capt Chuck]

I hear Spidercrabs Meema used it daily in her enema pouch!

[Vezo, Part II]

Thanks guys, I believe On/Off is muriatic acid. Been using it for 25 years on non bottom painted gel coat. Was concerned the AwlGrip would not stand up to it.

[Vezo, Part II]

My neighbor came by last night with what appeared to be a gallon rectangle shaped plastic jug, put a sprayer on it and went to work. Spray, wait, gently rinse. Better than On/Off. Called Rust/EX and he bought it under $10 at Home Depot. Hull came out really nice.

Vezo, Part II

[Fr. Frank]

Originally Posted by Vezo, Part II

Thanks guys, I believe On/Off is muriatic acid. Been using it for 25 years on non bottom painted gel coat. Was concerned the AwlGrip would not stand up to it.

On/Off is a blend of Hydrochloric Acid, Phosphoric Acid, and Oxalic Acid in a neutral suspension. It is MUCH stronger than Muriatic acid.

Use On/Off ONLY while wearing gloves, eye protection, and a respiratory mask of at least R97 rating. The manufacturer, Siloo, on the MSDS recommends using a chemical cartridge respirator while using On/Off in an environment where it may become aerosolized, such as in a breeze or windy conditions.

[uncleboo]

Originally Posted by Fr. Frank

The manufacturer, Siloo, on the MSDS recommends using a chemical cartridge respirator while using On/Off in an environment where it may become aerosolized, such as in a breeze or windy conditions.

Believe them! I thought I was a goner the first time I used it...outside...in a slight breeze.

[Old'sCool]

Originally Posted by uncleboo

Believe them! I thought I was a goner the first time I used it...outside...in a slight breeze.

Same here...takes your breath away