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I am interested to hear what keel bolt seal lubricant, if any, others use.
My personal favourite is silicon grease, as used in a new rubber impellor as it will not attack the rubber.
Others use underwater grease, but some feel this expands the rubber.
Some use other readily available greases.
Then there’s Vaseline which is also recommended for impellors.
Finally there’s the popular glycerol.
What do you use?
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