Would this be worth spraying on the shafts, props and rudders?
I saw this at HD, Zinc galvanizing coating in a spray paint can.
It is $5 per can.

Since it is zinc and cheap It could not hurt right?

hiya
I use cans of zinc spray when restoring cars, when i spot weld body panels
together you need a good electrical contact but if you leave the gap paint
free they will rust inside the seam.
The zinc spray can be as much as 99.7% zinc but some are less. The problem
is painting over the zinc. Paint just doesnt stick very well, as a coating
on its own I would say try it but dont expect it to wear very well .

fragged


"Scott Downey" wrote in message
...
Would this be worth spraying on the shafts, props and rudders?
I saw this at HD, Zinc galvanizing coating in a spray paint can.
It is $5 per can.

Since it is zinc and cheap It could not hurt right?

"Scott Downey" wrote in message
...
Would this be worth spraying on the shafts, props and rudders?
I saw this at HD, Zinc galvanizing coating in a spray paint can.
It is $5 per can.

Since it is zinc and cheap It could not hurt right?



Galvatic corosion is still a bit a mystery to me, but wouldn't zinc
galvanizing or zinc rich paints erode away along with your anodes ?

Standard zinc paint has limitations as a sacrificial anode. There's
less than one volt electrical potential between Zinc and stainless or
bronze. And the organic binder in paint makes great electrical
insulation; so only a small fraction of the paint's zinc pigment will
contact and/or interact with the base metal. Sacrificial anodes have to
be placed on paint-free metal surfaces for this very reason.
As to the wearability of zinc/aluminum paint...and I havn't tried the HD
product you describe. It looks good the day of application.
Regards, Boatdreams.

you really should read all the post you are replying to

"fraggy" wrote in message
...
hiya
I use cans of zinc spray when restoring cars, when i spot weld body
panels
together you need a good electrical contact but if you leave the gap paint
free they will rust inside the seam.
The zinc spray can be as much as 99.7% zinc but some are less. The
problem
is painting over the zinc. Paint just doesnt stick very well, as a coating
on its own I would say try it but dont expect it to wear very well .

fragged


"Scott Downey" wrote in message
...
Would this be worth spraying on the shafts, props and rudders?
I saw this at HD, Zinc galvanizing coating in a spray paint can.
It is $5 per can.

Since it is zinc and cheap It could not hurt right?