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Prep Body For Polyurethane?


Clampy
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I've done one body with Nitro and it came out great. Looking at taking the plunge to 2 part Polyurethane to get some of the more exotic colors (I'm planning on HOK Kameleon...expensive but very cool!!). Are there any good tutorials available for Polyurethane paint on wood?? I've searched the forum and didn't really find anything specific.

The body will be Alder and the neck will be Maple... Suggestions....???

Thanks

-Chris

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What kind of enviroment are you spraying this stuff in? More importantly, what safety precautions will you be taking when spraying it?

I'm planning on building a frame (8x8x8???) and covering it with plastic film. Two box fans (filtered) one in / one out set to keep postive pressure. Carbon filter mask... borrowing a high capacity compressor from a friend. Still need to get a gun of some sort. Should work for this small scale stuff. What do you think??

-Chris

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I've sprayed with a carbon filter mask and good ventilation before, but it certainly isn't ideal. Listen, poly is seriously bad for your nervous system, you really need to have a fresh air supply and a full body suit(poly can absorb through your skin). Also, I'd spray outside way before I sprayed with box fans(or any fan that isn't explosion proof, for that matter). Almost anything that's atomized from a spray gun is potentially explosive, especially poly. That's not something I'd do on a regular basis, but for a one time situation, perhaps. As for a spray gun, I use a $30 jam gun and when dialed in correctly and used well, it works just fine.

As for the process, when I'm doing opaque finishes and I need the base coat dead flat(which you would, especially with chameleon), I grain fill, spray a high build primer, then a sandable primer, I sand the sandable primer, then I spray my color coat, then my clear coats, then wetsand and buff.

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I've sprayed with a carbon filter mask and good ventilation before, but it certainly isn't ideal. Listen, poly is seriously bad for your nervous system, you really need to have a fresh air supply and a full body suit(poly can absorb through your skin). Also, I'd spray outside way before I sprayed with box fans(or any fan that isn't explosion proof, for that matter). Almost anything that's atomized from a spray gun is potentially explosive, especially poly. That's not something I'd do on a regular basis, but for a one time situation, perhaps. As for a spray gun, I use a $30 jam gun and when dialed in correctly and used well, it works just fine.

As for the process, when I'm doing opaque finishes and I need the base coat dead flat(which you would, especially with chameleon), I grain fill, spray a high build primer, then a sandable primer, I sand the sandable primer, then I spray my color coat, then my clear coats, then wetsand and buff.

I've read it is bad stuff for the human body... my thought was that this isn't something I do all the time and I'll have fairly limited exposure. The explosion thing does sound scary. I may chicken out and have it done.. we'll see.

Assuming I do give it a shot. What product would you recommend for grain filling??

Thanks,

Chris

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