Tung Oil vs. Linseed Oil: The Ultimate Guide for Wood Finishing
Understanding the Basics
Tung oil and linseed oil are both popular natural oils used for finishing wood. They offer unique properties and characteristics that make them suitable for different applications.
Types and Properties
- Tung Oil:
- Pure tung oil offers a beautiful matte finish which retains the natural colour of wood.
- It has exceptional water resistance and durability due to its ability to form a hard protective barrier.
- Linseed Oil:
- Linseed oil imparts a slightly yellow hue to wood, which may become more prominent over time.
- It provides moderate water resistance but is less durable than tung oil.
- Boiled linseed oil speeds up drying time while polymerised linseed oil offers improved durability.
Factors to Consider
When choosing between tung oil and linseed oil, consider the following factors:
- Appearance: Tung oil provides a natural, matte finish while linseed oil leaves a satin sheen.
- Water Resistance: Tung oil has superior water resistance compared to linseed oil.
- Durability: Pure tung oil is more durable than linseed oil, offering better protection against scratches and abrasions.
- Maintenance: Tung oil requires regular cleaning and reapplication to maintain its protective qualities while linseed oil requires less frequent maintenance.
- Drying Time: Tung oil has a shorter drying time than raw linseed oil, making it more convenient for quick applications.
- Cost: Linseed oil is typically less expensive than pure tung oil.
Applications
- Tung Oil:
- Works well on surfaces that require durability and water resistance, such as countertops, butcher blocks and boat decks.
- Linseed Oil:
- Suitable for ornamental furniture pieces and items that don’t require high levels of durability, such as wooden bowls and spoons.
Specific Considerations
- Pure vs. Impure Oils: Impure versions of tung oil and linseed oil may contain additives that alter their properties.
- VOCs: Boiled and polymerised linseed oils contain volatile organic compounds (VOCs) which can emit fumes during application.
- Drying Time: Drying time varies depending on the oil type and the number of coats applied. Allow ample time for curing to ensure optimal protection.
Application Tips
- Surface Preparation: Sand the wood surface smoothly and remove all dust and debris.
- Tung Oil: Apply liberally, allowing excess oil to penetrate. Wipe off any excess and allow to dry for several days. Repeat with multiple coats for best results.
- Linseed Oil: Wipe on the oil and allow it to penetrate for 15 minutes. Wipe off excess and allow to dry for several weeks before reapplying.
Maintenance
- Tung Oil: Clean with a damp cloth or mild cleaning products. Recoat regularly to maintain water resistance and durability.
- Linseed Oil: Wipe with a slightly damp cloth. For deeper cleaning, use a mixture of turpentine, vinegar and linseed oil. Recoat at least once a year to maintain protection.
Conclusion
Whether you choose tung oil or linseed oil depends on the specific requirements of your project. Tung oil has superior water resistance, durability and a matte finish while linseed oil has a more satin sheen and is a more budget-friendly option. An understanding of their properties and applications will enable you to make an informed decision and achieve the desired results for your wood finishing project.