What type of coating acts as a sealant for wood and aids in moisture protection?

Vegetable oils are known for their ability to penetrate wood surfaces and provide a barrier that helps in moisture protection. They work by conditioning the wood fibers and creating a natural seal that can enhance the wood’s durability against moisture. This characteristic makes vegetable oils suitable for applications such as outdoor wooden furniture or decking, where moisture resistance is crucial.

While polyurethane coatings are also protective and can serve similar purposes, they are more commonly used for their durability and finish rather than primarily for moisture protection. Acrylic finishes provide a protective layer, but their performance in terms of moisture protection may not match that of vegetable oils on porous surfaces like wood. Chlorinated coatings are designed for specific industrial applications and do not primarily serve as wood sealants.