JonC Posted January 6, 2021 Share Posted January 6, 2021 34 minutes ago, Saintly Fish said: Lets let the morons kid about @JonC, whilst we keep it real. From memory (which isnt great) my prop is bronze. Ive never coated it and this will be the first time ive cleaned it. The anode is roughly 11 months old, dont know why its in good shape, it will be changed though regardless. What would you coat a prop in anyway?? I know the angry SA welsh guy used to talk about white grease?? Yes prop is bronze, don’t coat that. There are a few products on the market each is one thousandth of a be micron thinner than the last. Rudder, the big flat bit that is controlled by the round thing where you sit. Is that stainless? Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted January 6, 2021 Author Share Posted January 6, 2021 41 minutes ago, JonC said: . Is that stainless? I dunno. Don’t think so as it’s anti fouled. Quote Link to comment Share on other sites More sharing options...
andydavy Posted January 6, 2021 Share Posted January 6, 2021 Back on topic - what antifoul did you use? Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted January 6, 2021 Author Share Posted January 6, 2021 34 minutes ago, andydavy said: Back on topic We haven’t left the topic? We can drift far better than this!! I use Hempel hard racing with some additional copper and zinc oxide powder mixed in. Quote Link to comment Share on other sites More sharing options...
JonC Posted January 6, 2021 Share Posted January 6, 2021 I’ve always used hard racing, seems to work in my area. Quote Link to comment Share on other sites More sharing options...
Geoff Posted January 6, 2021 Share Posted January 6, 2021 I think the rudder (or any other) anode needs to be in electrical contact with the part it is supposed to be protecting. I would guess that anode is siting on non conducting paint and is therefore not working. Geoff. Quote Link to comment Share on other sites More sharing options...
JonC Posted January 6, 2021 Share Posted January 6, 2021 2 minutes ago, Geoff said: I think the rudder (or any other) anode needs to be in electrical contact with the part it is supposed to be protecting. I would guess that anode is siting on non conducting paint and is therefore not working. Geoff. That is exactly what I was thinking. Could this be linked to the exhaust elbow/turbo thing I fixed back in the autumn? Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted January 6, 2021 Author Share Posted January 6, 2021 Don’t forget though @JonCand @Geoff that these anodes are only 10 months old. Quote Link to comment Share on other sites More sharing options...
JonC Posted January 6, 2021 Share Posted January 6, 2021 49 minutes ago, Saintly Fish said: Don’t forget though @JonCand @Geoff that these anodes are only 10 months old. Still doesn’t look like they are doing much, I bet every other boat around you has shore power running, that effects the rate. Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted January 6, 2021 Author Share Posted January 6, 2021 8 minutes ago, JonC said: Still doesn’t look like they are doing much, I bet every other boat around you has shore power running, that effects the rate. I don’t get what you mean. I have shore power on 100% of the time when at the pontoon. Quote Link to comment Share on other sites More sharing options...
Geoff Posted January 6, 2021 Share Posted January 6, 2021 2 hours ago, Saintly Fish said: Don’t forget though @JonCand @Geoff that these anodes are only 10 months old. Neil, if they are not doing their job they will last for years! Geoff. Quote Link to comment Share on other sites More sharing options...
Geoff Posted January 6, 2021 Share Posted January 6, 2021 1 hour ago, Saintly Fish said: I don’t get what you mean. I have shore power on 100% of the time when at the pontoon. As I understand it, that is normally the worst case for disolving the anodes - I bet they are isolated. Geoff. Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted January 6, 2021 Author Share Posted January 6, 2021 14 minutes ago, Geoff said: As I understand it, that is normally the worst case for disolving the anodes - I bet they are isolated. Geoff. I will remove the rudder anode as I’m replacing it and see if there is any paint underneath it. If yes I will scrape it back. Geoff 1 Quote Link to comment Share on other sites More sharing options...
Geoff Posted January 6, 2021 Share Posted January 6, 2021 Out of interest, does grade 316SS suffer from corrosion and in need of galvanic/electrolytic protection? Geoff. Quote Link to comment Share on other sites More sharing options...
GPSguru Posted January 7, 2021 Share Posted January 7, 2021 16 hours ago, Geoff said: Out of interest, does grade 316SS suffer from corrosion and in need of galvanic/electrolytic protection? Geoff. If you assume that the SS will be the anode, then It really depends on what the cathode material is, however, if the SS becomes the Cathode then it will cause a whole bunch of other materials to corrode as anodes .......... As a generalization 316SS is more positive than most other metals used in boats, so it will be the last to corrode, but may be the cause of corrosion elsewhere. That is why bonding and sacrificial anodes are so important Geoff 1 Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted January 7, 2021 Author Share Posted January 7, 2021 This is a picture of when my boat was delivered. The prop anode can be clearly seen but there is no shaft anode. Quote Link to comment Share on other sites More sharing options...
captin slows old outlaw Posted January 7, 2021 Share Posted January 7, 2021 i am so glad that i only have the outboard to wury abour, plus being on the trailer when not in youse. Andy135 and Geoff 1 1 Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted January 7, 2021 Author Share Posted January 7, 2021 4 minutes ago, captin slows old outlaw said: i am so glad that i only have the outboard to wury abour, plus being on the trailer when not in youse. It’s all part of the fun and learning curve Pete. Quote Link to comment Share on other sites More sharing options...
captin slows old outlaw Posted January 7, 2021 Share Posted January 7, 2021 9 minutes ago, Saintly Fish said: It’s all part of the fun and learning curve Pete. so i belive and there is much of it Saintly Fish 1 Quote Link to comment Share on other sites More sharing options...
Geoff Posted January 7, 2021 Share Posted January 7, 2021 1 hour ago, GPSguru said: If you assume that the SS will be the anode, then It really depends on what the cathode material is, however, if the SS becomes the Cathode then it will cause a whole bunch of other materials to corrode as anodes .......... As a generalization 316SS is more positive than most other metals used in boats, so it will be the last to corrode, but may be the cause of corrosion elsewhere. That is why bonding and sacrificial anodes are so important Thanks for that explanation GPS. Geoff.☺️. Quote Link to comment Share on other sites More sharing options...
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