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#1
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Pressure treated wood in an aluminum boat is a no-no
 The chemicals used in the treating process are very corrosive to the aluminum in tin boats. I also believe you are correct in your assumption that it will not hod the resin too well. I think you'd be better off for your hatch repair with regular plywood over the pressure treated in terms of fiberglassing the hatch. You'll be soaking it in resin anyways.
__________________
Heavily medicated for your protection. 
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#2
03-28-2008, 07:47 PM
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Dont use the pt plywood because it wont hold the glass, marine grade plywood has NO VOIDS IN IT and is very limited in footballs aka plugs and should not be worpped or bowed like some contruction grade plywood.
__________________
1987 Dual Console / 2007 200 hp E-Tec 
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#3
03-28-2008, 08:29 PM
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I've used " forming grade" plywood( has the red paint on the edges) with good luck for repairs. Its not cheap( all good wood is expensive), but its a lot cheaper than marine grade
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#4
03-30-2008, 02:14 PM
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you can use treated plywood ONLY if it is KENNEL DRIED AFTER THE TREATMENT
__________________
 1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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