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Resealing Your Cedarwood Spa

Oiling a wood hot tub is an essential maintenance step that helps preserve the wood's natural beauty, protect it from the elements, and prolong the lifespan of the tub. Here's a step-by-step guide on how to oil a wood hot tub:

Materials Needed:

  • Hot tub oil or wood sealer specifically designed for outdoor use (we use Penofin Transparent Redwood Sealer)

  • Soft cloth or brush for application

  • Sandpaper (optional)

  • Clean water and a towel


  1. Prepare the Hot Tub: Before starting the oiling process, ensure the exterior surfaces are clean and free from any dirt or debris.

  2. Sand the Surface (if needed): If the wood surface is rough or has any splinters, you can use fine-grit sandpaper to smooth it out. Sanding can help prepare the wood for better oil absorption. After sanding, rinse the tub with clean water and dry it thoroughly.

  3. Choose the Right Oil: Select a high-quality hot tub oil or wood sealer specifically designed for outdoor use. Ensure that the oil is suitable for the type of wood your hot tub is made of (e.g., cedar, redwood, etc.). We recommend using Penofin brand sealer (most tubs come in the redwood color), but any exterior grade UV protective wood sealer is perfectly fine.

  4. Apply the Oil: Use a soft cloth or brush to apply a thin, even coat of hot tub oil to the wood surface. Sealer is only applied to the exterior surfaces of the hot tub and stair unit. Work in small sections to ensure complete coverage. Make sure to follow the manufacturer's instructions regarding the application method and drying time.

  5. Allow the Oil to Penetrate: Let the oil penetrate the wood for the recommended time specified by the product manufacturer. This allows the wood to absorb the oil properly.

  6. Apply Additional Coats (if needed): Depending on the condition of the wood and the specific oil used, you may need to apply multiple coats. Follow the manufacturer's instructions regarding the number of coats recommended and the drying time between coats.

  7. Wipe Off Excess: After the recommended penetration time, use a clean cloth to wipe off any excess oil that has not been absorbed by the wood. This helps prevent sticky or tacky surfaces and ensures an even finish.

  8. Allow the Tub to Dry: Let the hot tub dry completely before refilling it with water. Make sure there are no oil fumes or odors left inside the tub before use.

  9. Refill and Enjoy: Once the oil has dried completely and the hot tub is ready, refill it with water and enjoy your rejuvenated and protected wood hot tub.

Remember to regularly maintain and oil your wood hot tub as part of its routine care to keep it looking beautiful and in top condition for many years of use. As a general rule, we recommend resealing the tub every year to protect the wood and every 6 months to maintain the highest level of beauty and color.

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