I installed two "Flex-O-Fold props on my cat in Canada
last year and sailed her to Trinidad. Lots of brass. I dove regularly to try to maintain smooth surfaces on them and rest of bottom, using plastic scouring pads on ablative paint and on props. In Trini, the brass had about 1/8" of carbonate growth. It took a few hours of tooth-brushing with 50% muriatic acid to clean them off.
I asked around, inside and outside chandleries what should be used to keep the brass clean. Bottom paint
seldom sticks without a good epoxy
or primer, and even they do not stick well, because the brass oxidizes almost immediately, and you are attempting to stick the coating to oxidized brass. Still, most coatings companies provide some type of product; but the experienced people I talked to in the aisles suggested nothing works satisfactorily.
Gougeon Brothers make an epoxy
coating that can work
, but (as I understand it) recommend submerging the part in the epoxy and wire brushing it under the surface of the wet epoxy. Seems rather messy to me, but I get covered from head
to toe just trying to get into an egg!
I was standing around as a cat was being launched, and noticed the props were coated with ablative paint. I asked the owner what he used, and he said the boat
was new to him. He was a New Zealander, and said if he had his way, and the time required, he would clean them off and apply lanolin, as it always works.
lanolin is an oil/cream that comes from sheep's wool. Rather common in New Zealand
, and with many uses there. I just got a little pot of it here in Canada
via a special order at a pharmacy. It will be on the plane to Trinidad with me shortly. I don't have any idea how or how much to use, or how well it will work
; but will give it a try. Anybody have experience?