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Molding center board tip HELP


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Hi Mark, when we poured the one for my boat, we built plywood the mold “vertically “.  Put a layer of green sand then held the wooden mold in sand vertically adding sand layer at a time.  Pack the sand with a wooden dowel and hammer as you continue to fill the mold.  Once the mold is full,  packed as tight as possible.  Then pull the wooden pattern from the sand.  Make darn sure the sand is dry then pour the molten lead into the mold.  It was surprisingly smooth, it took very little prepping afterwards to bond it to the bast of the centerboard.  

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