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  #1  
Old 01-11-2012, 06:39 PM
Entourage Entourage is offline
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Default Epoxy or Poly resin?

I am doing my transom and i am at the point where i am joining the 2 pieces of 3/4 marine ply together. I am trying to get feedback on what to use polyester resin with mat or just a 2 part epoxy resin?
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  #2  
Old 01-11-2012, 07:16 PM
pelican pelican is offline
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epoxy resin will provide the best bond...it's best to "wet" the surfaces with the epoxy - prior to coating with a laminating mix - this assures a full bond,versus a "dry bond"...

when working with wood - epoxy is allways the best choice...
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Old 01-11-2012, 07:46 PM
hermco hermco is offline
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The way we did the wood core back in the day was with poly and mat, screw together with drywall screws until cured then revove the screws before installing.
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Old 01-11-2012, 07:57 PM
Entourage Entourage is offline
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Ok guys very good, thank you for the helpful info.
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  #5  
Old 01-11-2012, 09:19 PM
gofastsandman gofastsandman is offline
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Always good info Don. The flex rates need to be thought about.

Cheers,
GFS

Last edited by gofastsandman; 01-11-2012 at 09:23 PM.
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  #6  
Old 01-11-2012, 09:28 PM
pelican pelican is offline
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big fan of using drywall screws for clamping parts together for laminating - old school - but it works...
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  #7  
Old 01-11-2012, 09:33 PM
hermco hermco is offline
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A new boat today typically has only an 8 lb. density sheet foam core. I see no problem with using the old tried and true wood and poly. Most boats back in the day were made that way and are still serviceable today unless water has compromised the core material.
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  #8  
Old 01-11-2012, 09:34 PM
hermco hermco is offline
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Quote:
Originally Posted by pelican View Post
big fan of using drywall screws for clamping parts together for laminating - old school - but it works...
Drywall screws are your friend!
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  #9  
Old 01-11-2012, 09:48 PM
gofastsandman gofastsandman is offline
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Penetration has been the enemy for millenia. For guys. For girls. For boats.

The old warped plane boats are still here. Good riggers are worth their weight in gold.

Not much emphasis on how I help the people who pay my bills anymore.

Cheers,
GFS
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  #10  
Old 01-11-2012, 09:53 PM
pelican pelican is offline
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Quote:
Originally Posted by hermco View Post
Drywall screws are your friend!


note what's in the penske board...



penetration - it's good and bad - bad when things aren't protected...good when they are...
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