Hand lay up or vacuum
#1
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Hand lay up or vacuum
So I've been wondering what's used in the modern industryuses as far as the laminate construction of boats is hand lay up still used or has all of the performance industry switched to vacuum bagging or are they past that on starting to use vacuum infusion.
Thanks for any input kile
Thanks for any input kile
#2
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Vacuum Bagging can make a Stronger bond of all the materials but also infuses more resin creating more weight. A good hand laid boat where they took the time to squeegee out the extra resin will be lighter but the bond of all the layers won't be as tight, Which is okay, they have made successful boats that way for a long long time.
#3
its a mix of everything across the board and for whats worth a majority are still layed up by hand. Theres nothing wrong with a well balanced skilled layup. Some of the limited production custom guys (Skater, OL, MTI, etc) use some bagging and infusion with great success but anyone doing production numbers is most likely stuck to wet layup methods because of workforce constraints. It is very tough to train and then get them to properly implement new methods.
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08 OPA Class 1 National Champion
08 Class 1 Geico Triple Crown Champion
08 OPA High Points Champion
10 OPA Class 1 National Champion ( happy now Ed! )
Last edited by glassdave; 09-23-2013 at 08:32 PM.
#4
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Vacuum Bagging can make a Stronger bond of all the materials but also infuses more resin creating more weight. A good hand laid boat where they took the time to squeegee out the extra resin will be lighter but the bond of all the layers won't be as tight, Which is okay, they have made successful boats that way for a long long time.
#5
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Too Stroked is correct. A properly bagged hand layup will be light and strong.
Now, ask a builder if they Vacuum bag, and they'll say they do...but they may only be doing a part of the process... Most do not bag the entire laminate and just bag the core to the outer laminates, many times after the outer laminates are cured, or very near cured. They bag the core on in hopes of not having the core release from the outer laminates. Epoxy resin kicks slower, which usually offers enough time to properly bag the entire laminate of a section... (Thats what we do at MTI)
Now, ask a builder if they Vacuum bag, and they'll say they do...but they may only be doing a part of the process... Most do not bag the entire laminate and just bag the core to the outer laminates, many times after the outer laminates are cured, or very near cured. They bag the core on in hopes of not having the core release from the outer laminates. Epoxy resin kicks slower, which usually offers enough time to properly bag the entire laminate of a section... (Thats what we do at MTI)
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Tim Gallagher
Performance Boat Center-FL
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Wright Performance, MTI, Cigarette, Sunsation
Tim Gallagher
Performance Boat Center-FL
[email protected]
954-809-8739
Wright Performance, MTI, Cigarette, Sunsation
#7
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I agree a Vacuumed panel will be stiffer than a Non bagged panel, But if you take the time to properly squeegee out the extra resin in a hand laid panel you'll get rid of a bunch of the excess resin (which is the bulk of the weight of a glass boat) Does 8 gal resin weigh less than 5 gal????
Last edited by fastdonzi; 09-23-2013 at 08:45 PM.
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I think you may have incorrect information. Generally speaking, a vacuum bagged boat weighs significantly less than a non-vacuum bagged boat. That's one of the reasons many high end manufacturers use the process. And yes, it's fairly expensive, so most "production" manufacturers do not use it.
as cool or as high tech skater or mystic is compared to say searay some of the sailboat guys are far beyond them. the high end sailboat guys are really where most the technology is taking place.
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Too Stroked is correct. A properly bagged hand layup will be light and strong.
Now, ask a builder if they Vacuum bag, and they'll say they do...but they may only be doing a part of the process... Most do not bag the entire laminate and just bag the core to the outer laminates, many times after the outer laminates are cured, or very near cured. They bag the core on in hopes of not having the core release from the outer laminates. Epoxy resin kicks slower, which usually offers enough time to properly bag the entire laminate of a section... (Thats what we do at MTI)
Now, ask a builder if they Vacuum bag, and they'll say they do...but they may only be doing a part of the process... Most do not bag the entire laminate and just bag the core to the outer laminates, many times after the outer laminates are cured, or very near cured. They bag the core on in hopes of not having the core release from the outer laminates. Epoxy resin kicks slower, which usually offers enough time to properly bag the entire laminate of a section... (Thats what we do at MTI)
And what resin percent do you use in your hand work?
Last edited by HEDGEHOGER; 09-23-2013 at 09:29 PM.
#10
Performance Boat Center
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Right... Resin needs to be properly squeegeed to remove the bulk of extra resin... Before proper bagging.
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Tim Gallagher
Performance Boat Center-FL
[email protected]
954-809-8739
Wright Performance, MTI, Cigarette, Sunsation
Tim Gallagher
Performance Boat Center-FL
[email protected]
954-809-8739
Wright Performance, MTI, Cigarette, Sunsation