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kayak
Senior Member
Username: kayak
Post Number: 82
Registered: 06-2016
| | Posted on Wednesday, December 07, 2016 - 06:32 pm: | 
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Ok, I had sandblasted the outer surfaces of my YT1 engine and transmission housings after disassembly,and immediately epoxy primed them with 2-part epoxy in a can from WW Grainger. It was NOT cheap! Once you activate the mix inside the spray can you have to apply it all in one shot. Before that was even fully cured, I coated everything with rustoleum gray. A shade lighter than original but appropriate looking.
Now it is months later and I have noticed a few things, for one thing, the epoxy is EXTREMELY durable. Where the enamel as been scratched, rarely if ever does the epoxy also come off. The latest issue is the carb leaked some gas onto the engine flange and the ethanol curdled the gray enamel there which I will have to touch up, but the epoxy was untouched.
When I hopefully can obtain a head and cylinder from George I am hoping to use epoxy as a primer and as a top coat. And to use epoxy paint in any future restoration.
Does this make sense with others experiences and if so where is a good source for epoxy paint? |
tmann
Member
Username: tmann
Post Number: 18
Registered: 09-2015
| | Posted on Thursday, December 08, 2016 - 04:19 pm: |
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Kayak, Am sure that you researched the epoxy paint before use, but having rebuilt several fiberglass boats, I know a little about it.
The stuff is every bit as durable ( or maybe more so) as the fiberglass I used to shoot it on, but can be WAY more dangerous than acylic enamels.
The only safe way to spray epoxy is to have a high volume spray hood to work under, and have an air-fed respirator.
I've known of old auto painters that absolutely wrecked their lungs trying to paint 2 part epoxy paint just like they painted enamel.
Don't know about adherence to cast iron, but once it's sprayed on clean fiberglass or sheet metal, it's there pretty much for life.
Tmann |
kayak
Senior Member
Username: kayak
Post Number: 84
Registered: 06-2016
| | Posted on Thursday, December 08, 2016 - 04:27 pm: |
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tmann thanks, I actually just applied it outdoors and don't recall using a good respirator mask although I may have. I will from now on. |
kayak
Senior Member
Username: kayak
Post Number: 90
Registered: 06-2016
| | Posted on Saturday, December 10, 2016 - 06:56 pm: |
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Today I happened to be with a professional automotive paint rep, and ran my situation by him. He praised epoxy as a primer but not for a top coat because it is not UV resistant, instead recommending a catalyzed urethane for the top coat. Just passing that along. I do not plan to disassemble and refinish the YT, but once the boat is finished and I have run it a bit, that could be a future option now that the engine has been apart and never seized on all fasteners etc. it would be fairly easy. Then I could get the color as exact match to original as well. |
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