Best Ways to Protect Your Ocean-Exposed Douglas Fir Table

1.- Clean the Table:

Make sure the table is clean and free from dirt, dust, and any mildew. Use a mild detergent and water, and let it dry completely.

2.- Light Sanding:

Lightly sand the surface with fine-grit sandpaper (220-grit) to smooth out any rough areas and ensure the new coat adheres well.

3.- Apply a Marine-Grade Varnish:

Use a high-quality marine-grade varnish, designed for protection against UV rays, saltwater, and harsh weather conditions. This type of varnish provides a durable, clear finish and can be applied over an existing oil-based sealant.
Ensure the existing oil-based sealant is completely cured before applying the varnish.

4.- Apply Multiple Coats:

Apply at least 3-4 coats of marine varnish for maximum protection. Follow the manufacturer’s instructions for drying times between coats. Lightly sand between coats with fine-grit sandpaper to ensure proper adhesion.

5.- Maintain Regularly:

Regularly check the condition of the finish. Clean the table as needed and reapply a coat of marine varnish annually or as signs of wear appear.
By following these steps, you'll provide an additional layer of protection to your Douglas fir table, helping it withstand the harsh coastal environment.