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You should be fine with your 6 gallon compressor. If you do run down the air pressure too much, just let it recharge. Plus, if you adjust the material feed on the hopper, you will not need as much air pressure to achieve a fine texture. Go to Harbor Freight and buy their hopper to spay on the liner: http://www.harborfreight.com/air-tools/paint/texture-paint-spray-gun-66103.html
I used it for all of my work and it is a third the cost of the Al's gun.
EDIT: I sprayed mine with a 4 gallon Dewalt Emglo Compressor from Home Depot
I can't tell you how happy I am to hear that! All along I've been remembering threads I read about DIY spraying Fluid Film and most of these guys had very small compressors. Even smaller than mine. So I went into this thinking I'd be okay. I just don't understand why Al's for instance wouldn't be aware of this. They'd sell more product. Everyone seems to be thinking in terms of only shooting large jobs and doing them quickly I guess.
Anyway if there are no objections I will be going ahead with this in the next week or so and reporting back. With pics. Unless of course it bombs.
BTW, do you have any pics of your finished projects?
Edit: I just checked and your Dewalt Emglo 4gal is rated at a bit more CFM than my porter cable. I hope it doesn't matter. At 90psi it's 4CFM vs 3CFM and at 40PSI it's 3.8 vs 2.6. (With Al's calling for 7CFM.)
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