Sealing a wood table for outdoor use is an important step to protect and preserve the beauty of the wood. A proper sealant creates a protective barrier against weathering and moisture damage. With the right products and techniques, you can easily seal your outdoor wood table for long-lasting durability.
Choose an Appropriate Sealant
When selecting a sealant, consider the type of wood and the environmental conditions the table will be subjected to. Here are some top options:
Polyurethane
Polyurethane is a popular choice for outdoor wood tables. It forms a durable, water-resistant barrier that protects against UV rays, moisture, and mildew. Oil-based polyurethane tends to provide better protection compared to water-based options. Apply 2-3 coats for best results.
Spar Urethane
Spar urethane is a marine-grade sealant designed for exposure to sun and moisture. It penetrates deep into the wood grain to provide superior protection. Spar urethane forms a flexible, long-lasting film on the wood’s surface. 2-3 coats are recommended.
Tung Oil
Tung oil is a natural drying oil that seals and finishes wood with a warm, low-sheen look. It offers moisture resistance and UV protection. Multiple thin coats of tung oil are needed to build adequate protection. It will need reapplication every year.
Epoxy Resin
For a glassy, highly protective finish, two-part epoxy resin can be used. It creates a plastic-like coating that seals the wood entirely. Epoxy is very durable but can yellow over time. Proper preparation is crucial for good adhesion.
Penetrating Wood Stain
For a simple application that protects while enhancing the wood’s natural appearance, use a pigmented penetrating stain. It sinks into the wood while adding rich color. Top it off with a sealer for improved water repellency and UV resistance.
Prep the Wood Surface
Proper prep is vital for the sealant to adhere and perform correctly. Here’s how to get your wood table ready:
- Allow new wood to dry fully, around 3-4 weeks. Moisture can prevent good sealant penetration.
- Sand the surface with 120-150 grit sandpaper to roughen it up and allow absorption.
- Clean away any residual dust, oil or grease with a cloth dampened with mineral spirits.
- Let the wood dry completely before starting to seal.
- Fill any cracks, holes or defects with a wood filler for the best results.
- Lightly sand again before you begin sealing for a smooth surface.
Apply Sealant Correctly
Read the product directions to ensure proper application and drying times. Here are some general tips:
- Use a good quality natural bristle brush. Foam brushes can leave bubbles.
- Maintain light, even coats. Avoid puddles or heavy saturation.
- Allow each coat to dry fully before adding the next. Lightly sand between coats.
- Apply along the wood grain direction for a smoother finish.
- Use thin coats. Too much sealant prevents drying and curing.
- Add at least 2-3 layers, allowing drying time between coats.
- Lightly sand and wipe clean between coats for best adhesion.
Maintain the Finish
A sealed outdoor wood table will last longer with proper care and maintenance:
- Wipe up spills quickly to avoid moisture damage.
- Reapply fresh sealant each year or as needed to renew protection.
- Light sanding opens the pores for maximum sealant penetration.
- Store the table covered or bring indoors to extend its life.
- Refinish promptly if you notice cracks, peeling or graying of the sealant.
With the right sealing products and techniques, your valued outdoor wood table can stay beautiful and protected from the elements for many years of alfresco dining and entertaining!
Frequently Asked Questions
What is the best sealant for outdoor wood tables?
Polyurethane, spar urethane, and epoxy resin tend to provide the most durable, protective seal for outdoor wood tables. Penetrating stains also work well sealed with a topcoat.
How do I apply sealant smoothly?
Use a good quality natural bristle brush. Maintain a light, even coating without oversaturation. Work along the wood grain and allow proper drying between coats. Lightly sanding between coats promotes smoothness.
How many coats of sealant are needed?
Most sealants require 2-3 thin coats for adequate protection, allowing full drying time between each layer. Adding too much at once prevents proper drying.
How often should I reseal an outdoor table?
Plan on reapplying sealant about once per year, or as soon as you notice wear and damage setting in. Regular resealing maintains the protective barrier.
What’s the best way to prep wood for sealing?
Allow new wood to fully dry, sand smoothly, clean away any residue, fill imperfections, and sand again before starting to seal. Proper prep ensures maximum adhesion.
Conclusion
Sealing an outdoor wood table properly with the right sealant and application techniques can significantly prolong its life. Polyurethane, epoxy, spar urethane or penetrating stains all offer good protection when applied correctly. Preparing the surface thoroughly and maintaining the finish annually will keep your table beautiful for seasons of alfresco dining to come. With this guide’s tips in mind, you can confidently seal your outdoor wood table against the elements.