all fired up 6 Posted May 1, 2011 Share Posted May 1, 2011 Had a close look at my boat the other day and in places the Fibre Glass is stained on the sides above the waterline. I looked in the boatshops down Westhaven and there are number of products that say they are for removing waterline stains in fibregalss. Have any forum members any experience with any of these? ie Brand names and how well they work? afu. Link to post Share on other sites
w44vi 17 Posted May 1, 2011 Share Posted May 1, 2011 Grunt have a waterline stain remover that works well, they also have a stainless steel cleaner that you paint on hose off that is awesome Link to post Share on other sites
Guest Posted May 1, 2011 Share Posted May 1, 2011 anything oxalic based will see you right Link to post Share on other sites
Guest Posted May 1, 2011 Share Posted May 1, 2011 HArpic toilet bowl cleaner works fine and is heaps cheaper. Link to post Share on other sites
Marshy 30 Posted May 1, 2011 Share Posted May 1, 2011 The waterline stain remover from bursnco works a treat. Just make sure if you want it to last that you wax over it once you have done it or it will go yellow again pretty quickly... on mercenary i was doing it every 2 months or so before i did the big cut and polish and now it seems to have gone away for good Link to post Share on other sites
Absolution 7 Posted May 1, 2011 Share Posted May 1, 2011 anything oxalic based will see you right FYI: Most of the commercial stuff is pretty dilute but it's a good idea to wear gloves anyway. Oxalic acid can get absorbed thru skin and reacts with the calcium in blood to form calcium oxilate which will then stuff your kidneys. Link to post Share on other sites
Guest mental outlook Posted May 1, 2011 Share Posted May 1, 2011 Best I have found is the Yachticom product from Sailors Corner in a white and orange bottle. Just a wipe on rinse off. I have found it to be significantly better than Grunt. As Marshy says the key is protecting it afterwards. Link to post Share on other sites
all fired up 6 Posted November 21, 2011 Author Share Posted November 21, 2011 Thanks everyone for your tips and hints on doing the job. I gathered some time and lifted the boat to do a number of jobs. One was to tackle the yellow gel coat stain. Here above is the before pic. Link to post Share on other sites
blue-fish 0 Posted September 13, 2013 Share Posted September 13, 2013 Aurora Marine Waterline Stain Remover Link to post Share on other sites
Island Time 1,235 Posted September 13, 2013 Share Posted September 13, 2013 I use oxalic acid. buy it in powder form, mix your own. abt a teaspoon in a 500ml spray bottle. cheap as, a 1kg pot will last for years! wear gloves. spray on, hose off after 10 mins. works like magic. Link to post Share on other sites
Terry B 71 Posted September 13, 2013 Share Posted September 13, 2013 Oxalic acid - what sort of store do we buy it from?? Link to post Share on other sites
Guest Posted September 13, 2013 Share Posted September 13, 2013 The oxalic acid shop. Link to post Share on other sites
Island Time 1,235 Posted September 14, 2013 Share Posted September 14, 2013 simple. you can buy it at bunnings, in powder form. also any chemical supply co... should be under 10 bucks for 1/2 kg... Link to post Share on other sites
all fired up 6 Posted September 14, 2013 Author Share Posted September 14, 2013 An Update on the Project.... About a year later the tannin stain came back. Here is what it looked like Link to post Share on other sites
all fired up 6 Posted September 14, 2013 Author Share Posted September 14, 2013 So we really took to it this time, Took the stain out with Emergel: then went around the hull with Nano gel coat sealer then around the hull again with a high tech polish (something I got at the boat show forget its name) Then around the hull again with 3M wax/polish 8 times around in total Seems to be hanging in there OK this time time will tell. Here is a shot of the after Link to post Share on other sites
all fired up 6 Posted September 14, 2013 Author Share Posted September 14, 2013 Here is the team hard at it. 8 times around the boat. They worked up a pretty good sweat. Cured with liberal applications of Stella when it was all over. Link to post Share on other sites
Recommended Posts
Archived
This topic is now archived and is closed to further replies.