Whew...I spent the last two weekends going to graduations, a wedding , mosing and most of the time and watching the rain come down I finally got a day off to work on the boat. With rain in the long range forecast for this weekend and Wednesday the only sunny day, I am going over the wall.
Plans are to touch up the bottom paint (I am taking my surveyor's advice and trying to wear the ablative down this season so I will just hit the bare and wear spots plus the waterline), wash the topsides, apply a few more coats of polyglow and then work on putting the new pedestal guard and stereo in.
After reading and re-reading everything I could find on propeller anti-fouling I have decided to blaze a potentially new path. Rather than spend $50+ on coatings which I know have about a 50% chance of working I bought an $11 can of CRC cold galvanizing. I found the following online which seems to indicate I am not nuts...my thinking being that since the zinc keeps dissolving it might keep the barnacles off and it can't be very harmful from an electrolysis perspective because it is there as an anode anyway, so in a way I am just coating the prop and shaft with sacraficial anode right? Anyway, I will hit it with a few coats and then keep it wet/damp with paper towels wrapped with plastic bags to cure. Worst case is I am out $11.
[FONT=Comic Sans MS, cursive]Q.[/FONT]
[FONT=Comic Sans MS, cursive]27.How does cold galvanisation react to seawater?[/FONT]
[FONT=Comic Sans MS, cursive]A.[/FONT]
[FONT=Comic Sans MS, cursive]Cold galvanisation is best protected with a duplex system. The most appropriate way is to use of a Mic sealer and a Pur topcoat. If the cold galvanisation is used as a single system then a water saturation of at least 2 hours before immersed into the sea is required. As mentioned elsewhere the polymerisation will speed up the formation of a barrier protection.[/FONT]
[FONT=Comic Sans MS, cursive]Q.[/FONT]
[FONT=Comic Sans MS, cursive]29.Can cold galvanisation be used as anti-foulding on ships?[/FONT]
[FONT=Comic Sans MS, cursive]A.[/FONT]
[FONT=Comic Sans MS, cursive]Yes, cold galvanisation provides a certain anti-foulding protection, although it hasn't been designed for this purpose. Ships intend to use a duplex system (with the appropriate colours) and a special anti-foulding with extremely low friction degree.[/FONT]
Plans are to touch up the bottom paint (I am taking my surveyor's advice and trying to wear the ablative down this season so I will just hit the bare and wear spots plus the waterline), wash the topsides, apply a few more coats of polyglow and then work on putting the new pedestal guard and stereo in.
After reading and re-reading everything I could find on propeller anti-fouling I have decided to blaze a potentially new path. Rather than spend $50+ on coatings which I know have about a 50% chance of working I bought an $11 can of CRC cold galvanizing. I found the following online which seems to indicate I am not nuts...my thinking being that since the zinc keeps dissolving it might keep the barnacles off and it can't be very harmful from an electrolysis perspective because it is there as an anode anyway, so in a way I am just coating the prop and shaft with sacraficial anode right? Anyway, I will hit it with a few coats and then keep it wet/damp with paper towels wrapped with plastic bags to cure. Worst case is I am out $11.
[FONT=Comic Sans MS, cursive]Q.[/FONT]
[FONT=Comic Sans MS, cursive]27.How does cold galvanisation react to seawater?[/FONT]
[FONT=Comic Sans MS, cursive]A.[/FONT]
[FONT=Comic Sans MS, cursive]Cold galvanisation is best protected with a duplex system. The most appropriate way is to use of a Mic sealer and a Pur topcoat. If the cold galvanisation is used as a single system then a water saturation of at least 2 hours before immersed into the sea is required. As mentioned elsewhere the polymerisation will speed up the formation of a barrier protection.[/FONT]
[FONT=Comic Sans MS, cursive]Q.[/FONT]
[FONT=Comic Sans MS, cursive]29.Can cold galvanisation be used as anti-foulding on ships?[/FONT]
[FONT=Comic Sans MS, cursive]A.[/FONT]
[FONT=Comic Sans MS, cursive]Yes, cold galvanisation provides a certain anti-foulding protection, although it hasn't been designed for this purpose. Ships intend to use a duplex system (with the appropriate colours) and a special anti-foulding with extremely low friction degree.[/FONT]
