When applying Ready Seal® to exterior wood, it is important that the wood be dry enough to accept a coating of Ready Seal® Stain and Sealer. Ready Seal®, Inc recommends moisture content of 12% or less when applying our stain. In most cases, waiting several days after wet weather is usually an acceptable drying time. However, many professional contractors like to remove the guess work and use a professional moisture meter. Ready Seal®, Inc is a distributor of the J-Lite Moisture Meter manufactured by Delmhorst®. This meter tells you immediately how much moisture is in your wood at the push of a button.