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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Best sealant
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<blockquote data-quote="macvette" data-source="post: 123354" data-attributes="member: 262"><p>I have used POR 15 sealant on all of my tanks two of which are are 1930s vintage and had no issues in aver 10 years.</p><p>None of my tanks had leaks so the sealant was only applied to prevent corrosion. I chose it because of work experience in the petroleum industry and because petrol in the US contained ethanol some years before Europe so unlike some other products here it has a proven record.</p><p>As Vincent Brake says, its essential to prepare the tanks scrupulously. This sealant kit ( as do others) comes with a surface etching solution which dissolves rust so if there are pinholes about to break through ie mainly sealed by rust, there is the potential for the tank the leak.</p><p>To avoid this, I perfer to first degrease the tank thoroughly and get rid of any rust electrolitically before using the sealant as directed.</p><p>Some years ago I posted pics of the method but if you Google it you will find good write ups of it. It is slow but has the advantage of converting rust to iron at a molecuar level so unlike an acid etch, does not remove material and reaches all parts of the tank. You would be surprised how much rust come off what looks like a relatively lightly corroded tank.</p></blockquote><p></p>
[QUOTE="macvette, post: 123354, member: 262"] I have used POR 15 sealant on all of my tanks two of which are are 1930s vintage and had no issues in aver 10 years. None of my tanks had leaks so the sealant was only applied to prevent corrosion. I chose it because of work experience in the petroleum industry and because petrol in the US contained ethanol some years before Europe so unlike some other products here it has a proven record. As Vincent Brake says, its essential to prepare the tanks scrupulously. This sealant kit ( as do others) comes with a surface etching solution which dissolves rust so if there are pinholes about to break through ie mainly sealed by rust, there is the potential for the tank the leak. To avoid this, I perfer to first degrease the tank thoroughly and get rid of any rust electrolitically before using the sealant as directed. Some years ago I posted pics of the method but if you Google it you will find good write ups of it. It is slow but has the advantage of converting rust to iron at a molecuar level so unlike an acid etch, does not remove material and reaches all parts of the tank. You would be surprised how much rust come off what looks like a relatively lightly corroded tank. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Best sealant
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