Re-painting Merc Outdrives

300sflyer

Chief Petty Officer
Joined
Jan 1, 2009
Messages
627
After doing plenty of research, and talking with several companies about their paint products, I decided it was time to refinish my outdrives. The paint was coming off in several areas, and it was time to do them before they suffered any corrosion damage.

The first step was to get them media blasted. The company I used did them in a blasting booth, which is really the best way. They did not use sand or soda, but instead they used lime. All of the original paint and primer was removed, and the blasting left a perfect surface for the primer to adhere to. A simple wash with a bit of soap and water, was all it took to remove any blasting residue.

After making sure they were completely dry, the next step was to prime them. I decided to go with Akzo Nobel Awlgrip 545 grey primer, as it requires no further treatment "if" the aluminum is media blasted. This is an above or below the waterline 2 part epoxy primer, which is then reduced up to 25% for spraying. It was very easy to spray, and provided excellent coverage. This primer has time a window, whereby there is no need to sand before the final topcoats. I felt this was inportant, as hand sanding every little spot on these drives, would be very difficult if not impossible.

After 3 coats of primer, it was time for the topcoats. Again, I decided to use Akzo Nobel paint. The one used is high solids 2 part single stage polyurethane. Again coverage was excellent, and I think finished results look pretty good. [see below] The last step, will be to apply the new OEM Bravo decals.:D

All of the painting was done in a paint booth, while wearing a proper filtered mask. DO NOT do this type of spraying without the right equipment! This paint is nasty stuff!

Here are the links to the primer and topcoat paints.

http://www.awlgrip.com/products/search/pages/545_Epoxy_Primer.aspx
http://www.akzonobelcarrefinishes.net/default.asp?sid=65395&pid=452

DSC_0432.jpg
 

dakine

Seaman
Joined
Sep 2, 2009
Messages
71
Re: Re-painting Merc Outdrives

Good to see paint done safely and correctly.
That should hold up for awhile.

These are the most recent marine paint I did.

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Thommen1copy2.jpg


Those outdrives need some flames:cool::cool:
 

WizeOne

Commander
Joined
Mar 23, 2008
Messages
2,097
Re: Re-painting Merc Outdrives

Looks fabulous, 300. I doubt they give that paint away, though?

I googled 'lime' blasting but did not come up with much. I did find 'dry ice' blasting, though. That looks pretty neat but I hate to think of the cost of the dry ice used.
 

dakine

Seaman
Joined
Sep 2, 2009
Messages
71
Re: Re-painting Merc Outdrives

The very best materials are cheap compared to the labor of most jobs.
 

300sflyer

Chief Petty Officer
Joined
Jan 1, 2009
Messages
627
Re: Re-painting Merc Outdrives

Looks fabulous, 300. I doubt they give that paint away, though?

I googled 'lime' blasting but did not come up with much. I did find 'dry ice' blasting, though. That looks pretty neat but I hate to think of the cost of the dry ice used.

Are any good quality materials inexpensive? ;)

I spent about $275 on the paint and primer, and I probably have enough left over to paint two or three more drives.

Lime is very similar to soda, [both are water soluble and environment friendly] however lime leaves a slightly rougher surface, which is better for paint adhesion. This is what I was told by the fellow doing the blasting.
 

300sflyer

Chief Petty Officer
Joined
Jan 1, 2009
Messages
627
Re: Re-painting Merc Outdrives

Could not resist taking another picture with the Decals on. :)

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offthefront

Recruit
Joined
Jun 18, 2009
Messages
3
Re: Re-painting Merc Outdrives

Drives look great .....cpl of questions .... No worries about getting blasting material inside the drive? Did the blast propshaft bearing Carrier area? It always get pretty gunked up .....thanks .....m
 

300sflyer

Chief Petty Officer
Joined
Jan 1, 2009
Messages
627
Re: Re-painting Merc Outdrives

The shop I used had blasted quite a number of drives previously.

The only areas that got a direct media blast, were where the new paint would be applied. Having said that, I still made sure both the top and bottom shaft areas, as well as the u-joints, where well protected from the media.
 

83vert

Petty Officer 1st Class
Joined
Sep 10, 2009
Messages
394
Re: Re-painting Merc Outdrives

Boy am I jealous, Im still trying to clean mine up.
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Hopefully in the spring it will look like yours. :D
 
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