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Painting Lower Unit.
Working through the light rain here taking off all that old Merc. paint that is all cracked. Have Merc. paint, but wondering if a normal automotive primer will be fine. ???
  
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#2
04-27-2007, 02:27 PM
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Re: Painting Lower Unit.
hamster, i would try to locate a high-zinc primer.
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hammer aint. stinkpot aint. sawdust aint. rainbow aint. maco sure as sh!t aint. randle? ha ha ha. 
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#4
04-27-2007, 02:32 PM
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Re: Painting Lower Unit.
probably wont be so bad if its not left in water.
i think that applies more to boats left in the water.
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hammer aint. stinkpot aint. sawdust aint. rainbow aint. maco sure as sh!t aint. randle? ha ha ha.
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#6
04-27-2007, 02:42 PM
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Re: Painting Lower Unit.
I agree w/ CTT's 1st suggestion about the hi-zinc primer...spend a little more now and ya won't have to do it again next year ;) ...
Are there screens inside the intake vents?...make sure those don't clog up w paint...matter of fact, I'd tape each screen B4 painting...and I AIN'T kiddin' about that ;) ...
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'74 V-20/ BF 150 '95 V-21/ BF 150 '84 V-20/ 200 2.4 Merc '87 V-20/'18 F150 Yamaha 
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#7
04-27-2007, 03:03 PM
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Re: Painting Lower Unit.
Pikfish, yes, painting again >:(, but spray painting. Brings back memories of my juvenile days. ;D
Heavy down pour, no more work for now. Thanks REEL, I'll cover those vents up with tape. Just off the phone with West Marine, they carry a high zinc primer. 16 bucks a can. Guess that isnt to bad.
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#8
04-27-2007, 04:44 PM
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Re: Painting Lower Unit.
Hammer,
I am painting my engine also. Any areas that are down to bare aluminum need to be primed with a self etching primer such as zinc chromate. (yellow/green) I just bought a grey self etching primer for aluminum at a auto paint store which was only about $8.00 a can. If you use the zinc chromate, you only put down a very light coat for best results. If you don't use a self etching primer your paint will not stick properly and you will be painting again shortly. I hope this helps! Geek
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Doylestown, PA - Cape May County NJ, and all of the fishin\' holes known and unknown in the Delaware Bay and offshore!!!
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#9
04-27-2007, 05:41 PM
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Re: Painting Lower Unit.
Hammer:
Take Geekie1 advice. Zinc chroamtic is a pain to shoot with a spray gun and you won't be happy with the finish if its applied wrong. Although I have had better luck with pre-package spray cans, I can never get it to shoot from a gun without "stringing up" on me and making a big mess - immediatley followed by lots of sanding. Given the price and the difficulties of spraying it, I don't think its worth it on a engine that will be trailered. Use a automotive self etching primer and you'll be fine. Kamikaze
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 74 V20 CC with a 150 Johnson (Gone but not forgotten) 89 V20 Cutty with a Tower (Build in process)
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