Join Date: Jul 2008
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Re: Large Blister on Oday 31 Rudder
Your first reference is kind of curious in that it says solvents will not harm the "rudder blade". It make no reference to the foam.
Your second reference clearly states that ethylene glycol is a solvent !
Suggest you try another search "polyurethane foam dissolve ethylene glycol"
The hysterical laughter you hear as you drive a way in your"new" boat ..... is the seller.