| Re: Vacuum Switch setting for cut-out
[Re: TheManShed]
#242737 01/20/12 02:23 PM 01/20/12 02:23 PM |
Joined: Mar 2009 Posts: 932 Solomon's Island, MD samc99us
old hand
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old hand
Joined: Mar 2009
Posts: 932 Solomon's Island, MD | Interesting discussion. I always bag to the limit of my system, which is 17 in of Hg. I don't use real breather cloth any more; for the layups I am doing, paper towels generally get the job done. The key is in how you apply the epoxy. Typically my layup schedule is so dry to begin with-I wet-out cloth, bag with paper towels to remove excess, then proceed with the rest of the layup, place peel ply and 2 layers of paper towels down. The key is not removing too much epoxy from carbon, which is tough as carbon looks nearly the same wet or dry. Another issue is saturating the foam/plywood in the layup, which you really don't want as that is just adding weight without adding strength. Higher density foams (I'm using Rohacell IGF31, for boat work IG 71 is the ticket) aide in this. Of course, I'm working on such razor thin margins that West Systems is useless to me, as the viscosity is too high. I prefer Resin Research Composite Pro Systems, as it is less expensive, has equal or better material properties, and has lower viscosity. For really weight critical applications, I'm using Pro-Set or MGS. http://www.rcgroups.com/forums/showthread.php?t=1546707
Scorpion F18
| | | Re: Vacuum Switch setting for cut-out
[Re: TheManShed]
#242783 01/22/12 10:51 AM 01/22/12 10:51 AM |
Joined: Feb 2009 Posts: 678 Palm Beach County TheManShed OP
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Joined: Feb 2009
Posts: 678 Palm Beach County | I've been layed up for a few days. Along with the house, bills, jobs, kids are gone now, dog and horse are old - but now you got the old body to deal with - in my case too many of the I treated my body like a tent while acting like superman years.
Yep it was Kevin that had the oven.
Paper towels may work for a RC size job but not a 20 footer.
Mike Shappell www.themanshed.comTMS-20 Builder G-Cat 5.7 - Current Boat NACRA 5.2 - early 70's | | | Re: Vacuum Switch setting for cut-out
[Re: orphan]
#242788 01/22/12 11:38 AM 01/22/12 11:38 AM |
Joined: Sep 2002 Posts: 3,224 Roanoke Island ,N.C. Team_Cat_Fever
Carpal Tunnel
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Carpal Tunnel
Joined: Sep 2002
Posts: 3,224 Roanoke Island ,N.C. | Time and no money. Money and no time. Hard to have both. Truer words were never spoken.
"I said, now, I said ,pay attention boy!"
The cure for anything is salt water - sweat, tears, or the sea Isak Dinesen If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most. E. B. White
| | | Re: Vacuum Switch setting for cut-out
[Re: TheManShed]
#242811 01/22/12 08:35 PM 01/22/12 08:35 PM |
Joined: Mar 2009 Posts: 932 Solomon's Island, MD samc99us
old hand
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old hand
Joined: Mar 2009
Posts: 932 Solomon's Island, MD | I've been layed up for a few days. Along with the house, bills, jobs, kids are gone now, dog and horse are old - but now you got the old body to deal with - in my case too many of the I treated my body like a tent while acting like superman years.
Yep it was Kevin that had the oven.
Paper towels may work for a RC size job but not a 20 footer. Yes, in general I agree, but for smaller items like bulkheads, give the paper towel method a shot.
Scorpion F18
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