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    Home / Blog / Tung Oil vs. Linseed Oil for Wood: Which Natural Oil to Choose for Furniture, Tables or Outdoors?

    Tung Oil vs. Linseed Oil for Wood: Which Natural Oil to Choose for Furniture, Tables or Outdoors?

    If you are looking for a quality natural wood finish, you will probably come across two proven options – tung oil and linseed oil. Both have been used for centuries to protect and enhance the beauty of wood, both penetrate deep into its structure, and after full curing they are also suitable for surfaces that come into contact with food.

    Although these natural oils have a lot in common, each offers different properties, advantages and methods of use. They differ, for example, in drying speed, water resistance, the final appearance of the surface and the difficulty of application.

    On the market today you will find both pure tung oil (Pure Tung Oil)) and polymerised tung oil or polymerised linseed oil (Polymerized Linseed Oil)), which have been modified for faster curing and easier use. Choosing the right product therefore depends mainly on the type of project and the desired properties of the final finish.

    So is there really enough of a difference between tung and linseed oil to make it worth using both? And which one is more suitable for your furniture, worktop, cutting board or garden project?

    In this article we will compare their properties, advantages and disadvantages in detail and show you when to reach for tung oil and when linseed oil is the better choice.

    Tung oil vs. linseed oil

    Tung oil – the most water-resistant natural wood finish

    Tung oil is obtained from the seeds of the tung tree, native to China and other parts of Asia. The oil is pressed from the seeds using a powerful mechanical press – this process is commonly referred to as cold pressing.

    Tung oil is known for its high content of polyunsaturated fatty acids, especially alpha-eleostearic acid. It is this specific fatty acid that polymerises on contact with air. As a result, the oil gradually cures and forms a durable protective layeron the wood that helps protect the surface from water, dirt and everyday wear.

    Historically, tung oil was used, for example, for sealing boats, finishing furniture or protecting wooden beams in houses. To this day, it remains one of the most sought-after natural oils where high durability and a natural wood look are important.

    Drying time: tung oil dries more slowly but creates exceptionally durable protection

    Pure tung oil dries more slowly than polymerised linseed oil. This is because it is a 100% natural oilthat has not been heat-treated to speed up drying.

    It may be dry to the touch only after several days, and full curing can take several weeks. It depends mainly on:

    • room temperature,
    • air humidity,
    • the absorbency of the wood,
    • the amount of oil applied,
    • the number of coats,
    • how the excess oil is removed.

    Slower drying can be a disadvantage for projects you need to finish quickly. But if you are looking for a natural wood oil with high water resistance, especially for outdoor use, tung oil is one of the best choices.

    Tung oil vs. linseed oil: What is the real difference between them?
    Tung oil vs. linseed oil: What is the real difference between them?

    Colour and sheen: a warm amber tone and a naturally matt to softly satin look

    Tung oil gives wood a typical warm amber shade. This effect enhances the natural grain, depth and colour of the wood, making the surface look richer, smoother and visually more striking.

    After curing, tung oil creates a natural matt to softly satin surface. The final appearance may vary depending on the number of coats applied, the absorbency of the wood and the method of polishing.

    Tung oil is suitable if you want to:

    • enhance the natural grain of the wood,
    • give the wood a warmer, deeper shade,
    • preserve a natural look without a strong gloss,
    • create an elegant matt to satin surface,
    • use a finish without a plastic effect.

    Durability: tung oil is among the most water-resistant natural wood oils

    The main advantage of tung oil is its high durability. When applied correctly, it creates a protective layer that is very resistant to water, chemicals and mechanical wear.

    This makes tung oil an excellent choice for projects that will be exposed to more demanding conditions. It is suitable, for example, for:

    • outdoor furniture,
    • wooden garden planters,
    • barbecue accessories,
    • wooden elements outdoors,
    • dining tables,
    • heavily used indoor surfaces,
    • untreated wooden floors.

    Tung oil copes with long-term exposure to normal outdoor conditions better than many other natural oils. That is why it is popular where you need to combine natural composition, high protection and water resistance.

    Application: a thicker but smooth oil that spreads easily

    In its raw form, tung oil is thicker, yet smooth and easy to spread. Compared to polymerised linseed oil, it can be easier to apply because it is not as sticky.

    For application, we usually recommend applicator pads, a cloth or a fine applicator material. In some cases it can also be applied by hand, but it is always important to work in a thin layer and wipe off the excess oil thoroughly after a while.

    Basic recommendations for applying tung oil

    1. Sand the wood surface and clean off the dust.
    2. Apply a thin coat of tung oil.
    3. Let the oil soak into the wood.
    4. Wipe off the excess oil with a clean cloth or pad.
    5. Let the surface dry sufficiently.
    6. Apply further coats as needed.

    The better you remove the excess oil from the surface, the more even and pleasant the final appearance will be.

    Tung oil vs. linseed oil: What is the real difference between them?

    Walrus Oil Pure Tung Oil

    100% a natural, VOC-free tung oilthat deeply penetrates the wood, enhances its natural grain and creates a durable polymerising protective layer. Ideal for floors, furniture, kitchen worktops and outdoor wood.

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    Linseed oil – the fastest-drying natural wood finish

    Linseed oil is obtained from the seeds of common flax. Flax is one of the traditional crops that have been cultivated for thousands of years, and linseed oil itself has long been used, among other things, as a natural wood oil. It is popular mainly for projects that call for natural protection, a pleasant satin look and faster drying than some other natural oils.

    Linseed oil contains a high proportion of linoleic and alpha-linolenic acids. These components polymerise on contact with atmospheric oxygen – similarly to alpha-eleostearic acid in tung oil. It is this process that causes the oil to gradually harden on the surface and in the pores of the wood, creating a protective layer.

    Polymerized Linseed Oil from Walrus Oil undergoes heat treatment that speeds up polymerisation. As a result, it starts to cure faster after application to wood than ordinary raw linseed oil. Importantly, Walrus Oil does not use potentially harmful metal accelerators or chemical drying agents for polymerisation – the oil is processed using heat only.

    Drying time: linseed oil dries faster

    One of the main differences between linseed oil and tung oil is the drying speed. Linseed oil dries significantly faster and is usually dry to the touch within about 24 hours.

    Thanks to faster drying, it is suitable for projects where you want to finish the surface in a shorter time. It is also easier to work with when layering, as individual coats can be applied at shorter intervals than with slower-curing oils.

    Advantages of faster drying:

    • faster project completion,
    • easier application of multiple coats,
    • suitable for indoor furniture and smaller wooden products,
    • a more practical choice where you don't want to wait several days between steps.
    Tung oil vs. linseed oil: What is the real difference between them?
    Tung oil vs. linseed oil: What is the real difference between them?

    Colour and sheen: a soft golden shade and a satin look

    Linseed oil usually does not darken wood as much as tung oil. However, it can give the surface a soft golden shade, which is more noticeable on light woods such as maple, birch or light oak. This effect can become more pronounced after applying several coats.

    Pre-polymerised linseed oil such as Walrus Oil Polymerized Linseed Oilcreates more of a satin sheenafter curing. This makes it suitable for those who want a natural, yet slightly more elegant and refined look than with more matt oils.

    Linseed oil is therefore a good choice for:

    • indoor furniture,
    • shelves and cabinets,
    • decorative wooden products,
    • wooden accessories,
    • projects where you want to enhance the wood grain without significant darkening.

    Durability: better suited to interiors than extremely demanding environments

    Linseed oil provides wood with good basic protection, but is generally not as resistant to moisture and UV radiation as tung oil. It is therefore best suited to indoor use, where the wood is not exposed to water, rain or intense sunlight for long periods.

    Indoors, it can create a pleasant protective layer that helps protect the wood from everyday wear, drying out and dirt. For outdoor furniture, garden projects or places in frequent contact with water, however, it is usually better to choose a more durable oil, such as tung oil.

    We recommend linseed oil mainly for:

    • indoor furniture,
    • wooden cabinets and chests of drawers,
    • decorations,
    • interior wooden panelling,
    • less heavily used table and work surfaces.

    Application: a thicker oil that requires thorough buffing

    Due to pre-polymerisation, polymerised linseed oil has a thicker, stickier consistency than pure tung oil. When applying it, you should therefore expect it to spread somewhat less easily and require more careful working into the surface.

    For application we recommend using applicator padsor fine sandpaper, which helps work the oil into the wood better during application. Due to the thicker consistency, some users prefer to mix it with a natural solvent, but this is not necessary.

    After application, it is important to polish the surface thoroughly and remove the excess oil. It is careful buffing that helps create an even satin look and a higher optical sheen. For some, the more demanding application may be a disadvantage, but for projects where you want a beautifully smooth surface, thorough buffing is actually an advantage.

    Tung oil vs. linseed oil: What is the real difference between them?

    Walrus Oil Polymerized Linseed Oil

    100% a natural, VOC-free polymerised linseed oilthat quickly forms a hard protective layer, seals the pores of the wood and enhances its naturally warm satin look.

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    Linseed oil vs. tung oil: when to choose which?

    If you are looking for a fast-drying natural wood oil for interiors, linseed oil is a very good choice. It offers a pleasant satin look, enhances the wood grain and allows faster work in multiple coats.

    However, if you need maximum resistance to water, outdoor conditions or UV radiation, the more suitable choice will usually be tung oil.

    Simplified recommendation:

    Choose linseed oil if you want:

    • faster drying,
    • a more satin look,
    • a natural finish for interiors,
    • a more subtle colouring of the wood,
    • the ability to layer coats more quickly.

    Choose tung oil if you need:

    • higher water resistance,
    • better outdoor durability,
    • protection for more heavily used surfaces,
    • a deeper, warmer enhancement of the wood grain.

    FAQ

    How long does linseed oil take to dry?

    Polymerised linseed oil is usually dry to the touch within about 24 hours. Total curing, however, depends on temperature, humidity, the absorbency of the wood and the amount of oil applied.

    Is linseed oil suitable for outdoor furniture?

    Linseed oil can be used on various wooden surfaces, but for outdoor use it is not as durable as tung oil. For exteriors, garden furniture or wood exposed to water, it is better to choose a more durable oil finish.

    Does linseed oil darken wood?

    Linseed oil usually does not darken wood as much as tung oil. It can give it a soft golden tone, which is most visible on light woods and when several coats are applied.

    Is polymerised linseed oil natural?

    Walrus Oil Polymerized Linseed Oil is processed using heat. It contains no metal drying agents or chemical polymerisation accelerators, which makes it a natural choice for wood finishing.

    Why is linseed oil thicker than tung oil?

    With polymerised linseed oil, part of the polymerisation process has already taken place during heat treatment. As a result, it dries faster, but at the same time has a thicker, stickier consistency that requires more thorough spreading and buffing.

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