MikeyB Posted February 15, 2023 Share Posted February 15, 2023 Hi all, The lower unit on my Suzuki outboard has a section (skeg) that does not clear the water when tilted up fully. The skeg is currently antifouled as is the pump assembly and bracket but the antifouling does not appear to be working as well as the hull antifouling (International Micron 300) The international Micron 300 on the hull is in perfect condition so can I use it on the section of the lower leg, pump and bracket etc? Also the white Motor Mounting pad on the transom also fouls up badly so can I antifoul this as well? Can I use Micron 300 on the transducer? Any Advice would be appreciated. Quote Link to comment Share on other sites More sharing options...
Gordmac Posted February 15, 2023 Share Posted February 15, 2023 I believe a lot of antifouls aren't suitable for aluminium due to copper in them. daio web 1 Quote Link to comment Share on other sites More sharing options...
daio web Posted February 15, 2023 Share Posted February 15, 2023 i would not put it on the transducer and like gordmac said about the copper content in it do a bit of research on it make sure you dont paint over the anodes Quote Link to comment Share on other sites More sharing options...
MegaByte Posted February 15, 2023 Share Posted February 15, 2023 If there's clearance in the outboard well, you can adjust how far the engine tilts. I adjusted my Suzuki so it clears the water when fully tilted. You must use an antifoul that is compatible with aluminium on the outboard. I do my outboard bracket with Trilux I use this on the transducer https://www.force4.co.uk/item/Marlin/Eco-Transducer-Antifouling/BR7 daio web 1 Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted February 15, 2023 Share Posted February 15, 2023 3 hours ago, MikeyB said: Can I use Micron 300 on the transducer? A contentious one for some this subject. I've always antifoul Ed my transducers, I started with the same Eco stuff that @MegaBytelisted, but found it totally useless. Now I use the same AF as I put on the hull. Ive never had an issue with it effecting the plastics. I do use primer first. I suppose you need to look at the ingredients of your choice of paint. Quote Link to comment Share on other sites More sharing options...
suzook12 Posted February 15, 2023 Share Posted February 15, 2023 2 hours ago, Gordmac said: I believe a lot of antifouls aren't suitable for aluminium due to copper in them. Shouldn't matter, most alloys have copper in them anyway. There is an awful lot of aluminium alloy out there that is chrome plated which involves a copper coating first..... Quote Link to comment Share on other sites More sharing options...
MikeyB Posted February 16, 2023 Author Share Posted February 16, 2023 Hi Guys, thanks for the feedback. I’ve contacted International’s technical team for advice and will post any advice I receive. Tight lines Mikey B Saintly Fish 1 Quote Link to comment Share on other sites More sharing options...
JonC Posted February 16, 2023 Share Posted February 16, 2023 2 hours ago, MikeyB said: Hi Guys, thanks for the feedback. I’ve contacted International’s technical team for advice and will post any advice I receive. Tight lines Mikey B Are you saying that our technical advice team isn’t up to standard?🤣 Quote Link to comment Share on other sites More sharing options...
MegaByte Posted February 16, 2023 Share Posted February 16, 2023 22 hours ago, suzook12 said: Shouldn't matter, most alloys have copper in them anyway. There is an awful lot of aluminium alloy out there that is chrome plated which involves a copper coating first..... But not submersed in sea water. Quote Link to comment Share on other sites More sharing options...
MikeyB Posted February 18, 2023 Author Share Posted February 18, 2023 Hi Guy's Following on from my request for advice please see below. From: "Yacht, Uk" <iyp.uk@akzonobel.com>Subject: RE: Anti fouling plastic transducers HI Michael Thank you for your email. It's not recommended to use conventional antifouling on plastic transducers as the solvents will attack the plastic housing. There are other products in the market that are silicone or water based specifically made for use on transducers but not in our range. Kind regards John Not sure if this applies to all antifouling but to be on the safe side I'll use one recommended for use on transducers. Tight lines suzook12, daio web, JDP and 1 other 4 Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted February 18, 2023 Share Posted February 18, 2023 31 minutes ago, MikeyB said: Hi Guy's Following on from my request for advice please see below. From: "Yacht, Uk" <iyp.uk@akzonobel.com>Subject: RE: Anti fouling plastic transducers HI Michael Thank you for your email. It's not recommended to use conventional antifouling on plastic transducers as the solvents will attack the plastic housing. There are other products in the market that are silicone or water based specifically made for use on transducers but not in our range. Kind regards John Not sure if this applies to all antifouling but to be on the safe side I'll use one recommended for use on transducers. Tight lines Anti fouls these days are so diluted of aggressive chemicals due to environmental policies. I've been painting mine with normal antifoul for years with no issues. The eco stuff just does not work. You'll use it for a season, then be cheesed off because of the expense and the fact that you may as well not bother. Then you'll use normal AF and wish you'd done it sooner!! daio web 1 Quote Link to comment Share on other sites More sharing options...
suzook12 Posted February 19, 2023 Share Posted February 19, 2023 On 2/16/2023 at 6:37 PM, MegaByte said: But not submersed in sea water. But it does contain copper, that's my point..... And, yes, plenty of chrome plated stuff sees salt water..... Quote Link to comment Share on other sites More sharing options...
MegaByte Posted February 19, 2023 Share Posted February 19, 2023 (edited) 55 minutes ago, suzook12 said: But it does contain copper, that's my point..... And, yes, plenty of chrome plated stuff sees salt water..... Your choice. Put anluminium and copper in seawater, the aluminium becomes sacrificial. Aluminum is very susceptible to galvanic corrosion in contact with copper, with an electrolyte like water with some ionic content. Edited February 19, 2023 by MegaByte Quote Link to comment Share on other sites More sharing options...
suzook12 Posted February 19, 2023 Share Posted February 19, 2023 not my choice at all..... Aluminium alloy contains copper. Quote Link to comment Share on other sites More sharing options...
MegaByte Posted February 19, 2023 Share Posted February 19, 2023 (edited) Aluminium contains copper, but not as a separate material, when it's a separate material there's a potential difference and hence galvanic corrosion. I should have spoken to you 50 years ago, before I started work for the Admiralty Materials Laboratory, which later became Defence Evaluation and Research Agency. We could have saved Millions of pounds. Edited February 19, 2023 by MegaByte Odyssey 1 Quote Link to comment Share on other sites More sharing options...
suzook12 Posted February 19, 2023 Share Posted February 19, 2023 6 hours ago, MegaByte said: Aluminium contains copper, but not as a separate material, when it's a separate material there's a potential difference and hence galvanic corrosion. I should have spoken to you 50 years ago, before I started work for the Admiralty Materials Laboratory, which later became Defence Evaluation and Research Agency. We could have saved Millions of pounds. likewise, we could have saved hundreds of thousands not painting everything in chromatic paint...... So if you know your metallurgy, you will know what happens regards copper in aluminium Quote Link to comment Share on other sites More sharing options...
MegaByte Posted February 20, 2023 Share Posted February 20, 2023 It increases the strength and reduces corrosion resistance. Quote Link to comment Share on other sites More sharing options...
JonC Posted February 20, 2023 Share Posted February 20, 2023 5 minutes ago, MegaByte said: It increases the strength and reduces corrosion resistance. 5 minutes ago, MegaByte said: It increases the strength and reduces corrosion resistance. Are you two still bickering over this? Quote Link to comment Share on other sites More sharing options...
MegaByte Posted February 20, 2023 Share Posted February 20, 2023 No. I think I'll call it a day, but I still won't use an antifoul containing copper on my outboard. Quote Link to comment Share on other sites More sharing options...
JonC Posted February 20, 2023 Share Posted February 20, 2023 32 minutes ago, MegaByte said: No. I think I'll call it a day, but I still won't use an antifoul containing copper on my outboard. Quit while you’re ahead 🤣🤣 MegaByte 1 Quote Link to comment Share on other sites More sharing options...
suzook12 Posted February 20, 2023 Share Posted February 20, 2023 6 hours ago, MegaByte said: It increases the strength and reduces corrosion resistance. Try again Quote Link to comment Share on other sites More sharing options...
Saintly Fish Posted February 20, 2023 Share Posted February 20, 2023 31 minutes ago, suzook12 said: Try again I think you're on your own now mate! Brians bugged out! Quote Link to comment Share on other sites More sharing options...
MegaByte Posted February 20, 2023 Share Posted February 20, 2023 Aluminium-copper alloys (AlCu) are aluminum alloys that consist largely of aluminum (Al) and traces of copper (Cu) as the main alloying elements. Important grades also contain additives of magnesium and silicon (AlCu(Mg,Si)), often manganese is also included to increase strength (see Aluminum-manganese alloy [de]). The main area of application is aircraft construction. The alloys have medium to high strength and can be age-hardened. They are both wrought alloy [de]. Also available as cast alloy. Their susceptibility to corrosion and their poor weldability are disadvantageous. As I said. I’m out, as I’m fed up banging my head against a brick wall. Quote Link to comment Share on other sites More sharing options...
JonC Posted February 20, 2023 Share Posted February 20, 2023 I really don’t know hoo to side with on this, but I do think it would be a shame for it to fizzle out without a big metal fight🤣🤣😯 Dicky, daio web and suzook12 3 Quote Link to comment Share on other sites More sharing options...
suzook12 Posted February 21, 2023 Share Posted February 21, 2023 9 hours ago, JonC said: I really don’t know hoo to side with on this, but I do think it would be a shame for it to fizzle out without a big metal fight🤣🤣😯 Metal fight eh?? 🤣 Quote Link to comment Share on other sites More sharing options...
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