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Scott Downey February 2nd 04 02:27 AM

Zinc metal sparay paint
 
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?



fraggy February 2nd 04 06:18 PM

Zinc metal sparay paint
 
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?





Nigel February 6th 04 09:43 AM

Zinc metal sparay paint
 

"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 ?



boatdreams February 7th 04 06:20 AM

Zinc metal sparay paint
 
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.


fraggy February 14th 04 12:41 AM

Zinc metal sparay paint
 
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?








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