Sealing

By sealing the wood, moisture, dirt or bacteria will not be able to penetrate inside. Unfortunately, the oils and resins may already be lost, so the initial step in applying a sealer to old teak is to restore the oil content with a thorough application of teak oil. Clean and bleach the wood to an even color, then oil it until it refuses to accept more. Now wait at least two weeks to let the resins dry before you apply the sealer. After two weeks, wash the wood and let it dry completely. Then you can apply the sealer as it needs an oil free surface to attach to.

Maintain sealed wood by washing it and applying a fresh coat of sealer every two to three months.