"Ric C" ) writes:
Is Doug Fir acceptable as substitute for okume? What about MDO?

fir plywood "checks". the surface expands and contracts with changes
in temperature and humidity, particulary in direct sunlight so I've read.
as a result any finish you put on it develops hairline cracks. one way to
suppress it is to put on lots of polyester or epoxy resin but that adds
weight.
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