Tung vs. Linseed Oil: What Is the Difference?

Tung and linseed finishing oils—know the subtle differences

Photo: Marco2811/ Adobe Stock
Photo: Marco2811/ Adobe Stock
Highlights

  • Tung and linseed oil are both wood finishing oils.

  • Raw linseed oil costs around $20 per quart.

  • Tung oil costs more at $30 per quart but delivers better durability.

  • Linseed oil cures slowly and adds a slight yellow tint.

  • Both oils work well for hardwood floors and furniture.

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When you want to give your woodworking project a natural-looking finish that will catch the eye, wood finishing oils like tung and linseed are popular choices. Even though they may look similar in the bottle, they have important subtle differences. Understanding how tung versus linseed oil compare to each other will help you pick the right one for your particular project.

What Are the Differences Between Tung Oil and Linseed Oil?

When comparing tung versus linseed oil, both products look similar at first glance—they’re clear with an oily texture. Neither pure wood finishing oil is toxic to humans, meaning you can use either of them on tables where you’d prepare or eat food. Both will need reapplication regularly.

Tung oil is highly durable and cures clear in a few days. Linseed oil is less expensive, but it takes several weeks to cure completely. If used on wood products that will receive rough treatment, linseed oil may show scratches on its satin finish. Tung oil delivers a matte finish. 

Type of DifferenceTung OilLinseed Oil
ColorClearSlight yellowish tin
SheenMatteSatin
Full curing timeA few daysSeveral weeks
CostHigher than averageLower than average
DurabilityResists damageMay show scratches
Water resistanceAbove averageMinimal
SourceNuts of tung treesRipe flax seeds
Use on flooringYesYes
Ease of useEasier applicationChallenging to apply

Some of the most common uses for both tung and linseed oil on wood items include:

  • Hardwood floors

  • Furniture

  • Cutting boards

  • Paneling

  • Molding

  • Ceiling beams

  • Tool handles

Tung vs. Linseed Oil: Differences in Performance

wood floor with tung oil
Photo: zdshooter/ Adobe Stock

Many people use tung or linseed oil when refinishing hardwood floors, furniture, or other types of wood. Learn about the differences between these two types of wood finishing oils to determine which one to use for your projects.

Tint or Color

When applying tung oil or linseed oil to a piece of wood, linseed oil will add a slight yellow tint. However, you might not notice the tint on a darker piece of wood. 

Pure tung oil, meanwhile, dries clear every time. Pigment powders are available to add some color to tung oil. If tung oil adds a tint to your wood without adding pigment, it’s probably a non-pure tung oil.

Sheen When Dry

After tung oil dries, it leaves a matte sheen on the wood. Some people prefer this non- or low-reflective finish, as it allows the wood’s beauty to stand out on its own. 

Linseed oil creates a satin finish on the wood, which gives it a slight gloss. Many people like the satin finish for wood floors because it hides minor imperfections and dust.

Drying or Curing Time

One tip for refinishing hardwood floors correctly is understanding the drying and curing time for the finishing oil. Tung oil should cure within a few days, while linseed oil can take several weeks to fully cure. Tung oil often includes resins that speed up the drying time. 

If you’d like to speed up the curing time for linseed oil, try using boiled or polymerized linseed oils instead of raw linseed oil. If the application and curing steps for preparing hardwood floors for refinishing seem to be too much for you to tackle as a DIY project, hiring a local wood floor refinishing professional is a smart option. Professionals will use high-quality oils and give you guaranteed satisfaction with the results.

Cost

If you want to use pure tung oil, you can expect to pay up to $30 per quart. Raw linseed oil often costs less than $20 per quart.

If you want to save money compared to pure tung oil, you can select other options like blended tung oil, which will be less durable than pure tung oil. You can also save money on linseed oil by purchasing boiled linseed oil for about half the price of raw linseed oil. However, boiled linseed oil is not food-safe.

Durability

wood with linseed oil
Photo: Yuliya/ Adobe Stock

Most hardwood floors need refinishing after roughly 10 years. However, if you use linseed oil to refinish the floors instead of tung oil, you will need to refinish them more frequently.

Linseed oil delivers more durability than wood without an oil finish, but it creates far less durability than using pure tung oil. Linseed oil may suffer from water damage and scratches when used under normal conditions. You may need to reapply the linseed oil a few times a year to maintain the wood’s appearance. Tung oil is highly water- and scratch-resistant, but it will also need frequent reapplication if used on flooring in high-traffic areas.

Water Resistance

After applying tung oil to the surface of the wood, you should notice water beading up. If the wood begins to look dry or water stops beading on the surface, you’ll need to reapply the tung oil.

Linseed oil is minimally water-resistant, so you should not use it on wood that receives regular water exposure.

Ease of Use

Tung oil is easier to apply to wood than linseed oil, although it also has some challenges. Pure tung oil is thick, which slows the application process. Other variations of tung oil are thinner and decrease drying time, simplifying the application. 

Linseed oil has a thin consistency, which makes it easy to work with. However, you will need to use multiple coats, which causes the application to take significantly longer.

History

Both tung and linseed oil have a history of use dating back several centuries. Manufacturers press the nuts of the tung tree to produce tung oil, while linseed oil comes from ripe flax seeds.

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