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Individual trees that hold up better than others might ultimately help scientists breed new, hardier varieties, following a model being used to restore Port Orford cedar and several species of pine trees.

For the wooden separators, porous wood, such as Port Orford cedar, basswood, cypress, or cedar is used.

Port Orford cedar separators are used which are four times as thick as the usual starting battery separator.

The separators are made of Port Orford cedar and are 1/8 inch thick, about twice the thickness of the separator used in starting and lighting batteries.