I have a 44 year old waterwitch that I am currently working on. I have noticed that when the cockpit was rebuilt by a previous owner, he used brass screws instead of bronze and as a result the screws have dezincified are now going a greeny white colour and starting to mildly affect the surrounding timber.
My intention is to replace the screws with bronze ones, coated in either varnish or epoxy before insertion. What I would like to know is which of the two would be best. And also is there any preparation I can use to neutralise the salts that have been created in the surrounding timber