Weeping Pine Planks

Just bought a utility trailer that has pine 2x10 planks as floor. The Texas heat causes pine-tar/sap to ooze from cracks. Does anyone know how to seal (previously painted) pine to stop the ooze (short of moving to a cooler clime).
Thanks, Clayton Front-To-Back Remodeling DFW mid-cities
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It will stop, scrape off sap till it does then paint with oil primer and paint.
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