There is a product called Prop-Speed (I think that's it) that is VERY expensive but is supposed to be effective. I will try it at the next haul-out.
On Mon, Jan 7, 2013 at 2:16 PM, Martin DeYoung <mdeyo...@deyoungmfg.com>wrote: > Bob, > > I have used Pettit's Zinc Coat Barnacle Barrier #1792 (locally $16 to $17 > per rattle can) for more than 10 years. I have been very satisfied with > the results. > > Here in the Puget Sound area (cold dark salt water) it keeps growth off > the prop and shaft for up to two years. One can covers a three bladed MAX > prop, the SS strut, and the SS shaft. Calypso stays in the water year > round. After about 18 months tiny barnacles will begin to appear. > > Application is easy. I give the prop, strut, and shaft a light sanding, > clean with solvent, then apply several coats with (at >50F) 1 ½ hours > drying time between coats. > > Martin > Calypso > 1970 C&C 43 > Seattle > > -----Original Message----- > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Robert > Abbott > Sent: Monday, January 07, 2013 10:55 AM > To: cnc-list@cnc-list.com > Subject: Stus-List Prop Mussel Farm > > The topic is back.....last year, in an attempt to inhibit the growth of > mussels on the prop and prop shaft, I coated them with lanolin.....was > told or read this would help. When the boat was hauled in October, the > prop/shaft were completely encased in mussels, again. The growth has a > noticeable, negative effect on the performance of the prop later in the > season e.g. higher RPM's to attain same cruising speed when motoring. > After trying a few so called 'remedies', I am now convinced the only > effective way to keep the prop free of marine growth (mussels on mine) > is to dive a few times a season and physically remove them. Maybe I > need a few pounds of lead, my safety harness on and tethered to the > toerail and a few feet of hose the top end tied to the pushpit and me > breathing from the bottom end. > > However, before I comtemplated something like that, there is one more > 'remedy' I have heard/read about......it involves coating the prop/shaft > with "galvanized zinc spray paint". I have never seen this done and do > not know what effect it might have on the bronze prop (shouldn't be > negative but I'm not sure). There is never any marine growth on my > sacrificial zinc(s). > > Has anyone heard of this? Anyone with any experience with this paint on > props? > > Bob Abbott > AZURA > C&C 32 - 84 > Halifax, N.S. > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > -- Joel 301 541 8551
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