Q&A Forums
What to use? Post New Topic | Post Reply
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Brent Stewart
Posted: Nov 15, 2006 10:52 PM
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What to use?
I am a newbie and have been spraying .5lb I now have a couple of jobs that reqire the use of 2lb. I have the fusion ap and the fusion mp, which one should I use? What tip and mixingchambers would give me the best pattern and smoothest finish. Also what should my temps be as well as my psi. Any hel is greatly appreciatd.
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Gerry Wagoner
Posted: Nov 16, 2006 08:48 AM
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Is this for studwalls? If so, the finish is of minimal importance. I would try the same tip for 2-lb and see how it goes. If the tip & gun are clean it should spray well. regards, olger |
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Posted: Nov 16, 2006 09:31 PM
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I would use a round pattern instead of a flat tip. |
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Ryan Rhoads
Posted: Nov 18, 2006 08:44 PM
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Spray with your AP gun, I prefer a 4242 tip due to my machine keeps up with it a little better. be sure to window box your cavity and spray behind electrical boxes. I prefer to spray behind and then around any electrical boxes first. Another thing 2 lb. foam may require you to overlap each pass more than the 1/2 lb. I overlap 75 to 80%. Here in cold colorado I have to keep my barrels at about 80 degrees to ensure my B side gets pumped to the machine correctly. As far as temps go I run about 125 degrees A side and 130 degrees B side. But that changes with the brand of foam. If your pattern is off or you are getting a really rough surface change your temps a couple of degrees. |
