Is hdrochloric acid bad for the gel coat? Wade Oh Boy C&C 33 MKII Lake of the Woods
On Mon, Dec 17, 2018, 12:10 dwight veinot via CnC-List < cnc-list@cnc-list.com wrote: > In salt water it comes from iron and manganese ions ever present same as > you see at the watervlines in some toiler bowls that is why hydrchloric > acid containing toilet > bowl cleaners work like magic > > On Mon, Dec 17, 2018 at 9:28 AM Hoyt, Mike via CnC-List < > cnc-list@cnc-list.com> wrote: > >> Brian >> >> I have been told this is from Tanins in the water. We had a white >> gelcoat (not painted) boat in an area where a larger river and swamp >> emptied into a bay. Especially at the bow this brownish/greenish stain was >> very noticeable. The product On and Off (oxylic acid I believe) tool the >> stain off very easily. Unfortunately it comes back very quickly. I was >> informed this was due to the porous nature of the gelcoat. The prevention >> for this was waxing the hull esp at the waterline with a high quality wax. >> Once we started being diligent with the waxing the problem went away. >> >> ... and when I say came back quickly I mean very quickly. We were >> visiting Charlottetown, PEI for a regatta and took advantage of their crane >> to haul to clean bottom. While out I scrubbed the hull above waterline >> with On and Off and removed the tannin staining. Charlottetown Harbour is >> where three good sized rivers meet. The stain was back in a bit over 24 >> hours. >> >> Mike >> Persistence >> Halifax, NS >> >> -----Original Message----- >> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Brien >> Sadler via CnC-List >> Sent: Friday, December 14, 2018 1:59 PM >> To: cnc-list@cnc-list.com >> Cc: Brien Sadler >> Subject: Stus-List Hull products >> >> I’m looking for suggestions on a product to remove the the brown stain >> from my water line. Also, any recommendations on hull wax as well. >> >> Thanks, >> >> Brien Sadler >> TAZ >> 1987 C&C 35-3 >> >> Sent from my iPhone >> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> -- > Sent from Gmail Mobile > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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