How to Use Boiled Linseed Oil

Many woodworkers’ shops stock Boiled Linseed Oil. This oil is great for treating wood and leaves a smooth surface. It gives old, dried wood a new lease of life. Linseed oil is yellowish and comes from flax seeds. The oil can be easily made by soaking the seeds in solvents or pressing them.

The lustrous look of boiled linseed provides a beautiful finish for any wood project. This is a foolproof method that anyone can use without worrying about failure. There is a small learning curve, but it’s not difficult to get this right.

The pure linseed is very thick and takes a long time to dry. To improve the drying and application processes, chemical driers, thinners, and thinning agents are added to boiled linseed oils (BLO). Boiled linseed oil (BLO) is a rich, oily finish that can be applied to almost any surface. BLO is a must-have in the woodworker’s toolbox.

What is Boiled Linseed Oil?

The popular wood finisher, boiled linseed, is made from flaxseed. It is treated with chemicals that dry faster than linseed raw oil. This makes it more suitable for woodworking. The oil can enhance and protect the natural beauty of wood by penetrating and creating a layer of protection that repels moisture and helps prevent damage from ultraviolet rays. The versatility of boiled linseed oils allows them to be applied to various surfaces, including furniture, decks, fences and flooring. This product is used with other wood finish products to achieve the desired look and protection.

The oil, which is made from flax seeds that have been ripened, has protected and maintained the wood’s interior and exterior surfaces for over 100 years. It also saturates the wood, protecting it from scratches and wind pressure changes. Who wouldn’t use a product that is easy to use and environmentally friendly?

It is also known for its environmental benefits, as it is produced using natural extracts from the plants from which it was extracted. Toxic chemicals are not used to protect woodwork. You can only smell a slight hint of grass when you apply the product. It will also not give you headaches nor expose you to harmful chemicals.

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Boiled-Linseed-Oil-Finish-application on different types of wood

Why use boiled linseed oils?

Protection: The linseed oil is boiled and then applied to the wood surface to form a protective coating that repels moisture and protects it from UV damage.

Enhance Natural Beauty: Boiled linseed oils enhance the natural beauty of wood, bringing out its natural colours and grain patterns.

Versatility: Boiled linseed oils can be applied to various surfaces, including decks, fences, outdoor furniture and flooring.

Easy to Apply: The boiled linseed is easily applied with a brush, rag or spray gun and dries hard.

Affordable: The Boiled Linseed Oil is an affordable wood finisher with great value.

Boiled linseed is an excellent option for anyone looking to enhance and protect the natural beauty of wood projects. It’s also a very affordable and easy way to do so.

How To Use Boiled Linseed Oil?

It’s a great tool but can also be very frustrating if you need to learn how to use it properly. You may end up with a bad finish, or worse, and you must redo the entire piece, which takes a lot of time and is not fun. Let’s look at the best way to use boiled oil now that you understand what it is and its uses.

Prepare your workplace and implement safety precautions

As we mentioned earlier, boiled oil is flammable. It wouldn’t make sense to show you how to use it safely. You need to prepare the workspace for potential accidents. But how? First, You should ensure the workspace is properly ventilated to disperse any fumes.

Keep your tools like sandpaper, chisels and hammers with wooden handles separate from the boiled linseed oils. Once your boiled oil finish is applied, keep it in a place that is relatively free from accelerants or kindles.

Boiled linseed oils contain chemicals that dry faster than regular linseed oils. No matter what you plan to do with boiled linseed, you must wear eye protection, gloves and a mask when handling the oil. After preparing your workspace, place a tarp over your table and floor to prevent spills or filings.

Prepare your Workpiece

Preparing the workpiece before applying boiled linseed is essential to get the best possible finish. This preparation can be used for other things such as tung oil or varnish. You must sand, dust, and clean your workpiece before applying any linseed oils.

Why should you sand the surface of your workpiece? After giving your surface a once-over with a damp cloth, you can use your sandpaper to sand it. After your workpiece is completely dry, use sandpaper on the surface. Try to follow the grain.

How to Apply Linseed Oil

You’ve been waiting for this moment. Now it’s time to apply the boiled linseed to your workpiece. Using a rag, roller or brush, you can apply boiled linseed to your workpiece.

Pouring boiled linseed into a dispenser is one way to do it. You don’t need to dip your cloth into the oil container, as this could cause contamination. Plastic containers are not recommended for storing linseed oils over the long term. Pour out only the needed amount, and you can always add more later.

It’s time for you to start. If you are working on a rectangular or square workpiece, beginning at one end and working towards the other is best. You can divide the workpiece into sections and finish them individually to make it easier for you. This is an excellent approach if you are working on a large piece.

boiled linseed oil application on

Linseed Oil: Common Uses

Linseed oil is used in various ways, at home and in the workplace.

Linseed Oil As A Wood Finish

It penetrates deeply into the wood grain and provides long-lasting protection from moisture, UV rays and other environmental hazards. The wood grain is enhanced, and the finish is rich and lustrous.

Linseed Oil As A Base For Paints and Varnishes

You can add it to paints and varnishes to increase durability and smoothen the finish.

For Manufacturing Products

People use Linseed oil to make linoleum or other floor coverings. Some cosmetics, such as lip balms or moisturizers, contain it.

Other Uses: Linseed oil can be used in a variety of ways, such as to prevent rust on tools, as a lubricant, or as a treatment for leather.

Linseed Oil: Pros and Cons

Linseed oil can be used to finish wood in a variety of ways.


  1. This product is made from natural ingredients that are safe for the environment.
  2. Use it around pets and children without fear.
  3. The application is simple and doesn’t require any special equipment.
  4. The wood is protected for a long time as it penetrates deeply into the grain.
  5. It gives the wood a rich and lustrous surface, which enhances its natural beauty.


  1. The application can be messy and take up to several hours for the product to dry.
  2. It may have a strong smell that some people find offensive.
  3. This product is flammable, so use caution near open flames.

How can you revive old wood using boiled linseed oil?

After enough exposure to the sun, the UV rays will cause the wood to become grey. This grey wood will not adhere to paint or other coatings, so you must treat it before painting again. These simple steps will help you revive old wood so it’s ready to be painted or varnished.

Sand Lightly

Sandpaper of 120-grit is a good choice to remove any remaining dirt or wood fibres. Sanding helps to open the pores in the wood so that it can be prepared for oil. You can now apply oil after wiping off the dust.

Apply Oil

Mix boiled linseed and turpentine in a solution that is 50/50. Apply the mixture liberally to the wood with a cotton cloth. If you prefer, you can also brush the mixture on.

Apply a generous amount of oil to the surface. Do not apply just a thin coat. The oil will quickly penetrate and absorb into the wood. Remove the excess oil and let your rag dry if it is still shiny in a few minutes.

Let the oil air dry for 48 hours, at least. Do not apply a second layer. The oil will build up and cause paint adhesion issues. One coat will be sufficient.

Prime & Paint

Cover the wood with a primer based on oil after the oil has cured. Oil-based primers are better than latex primers because they create a strong bond between the boiled oil and primer. This gives your paint job a great finish. Water-based latex primers don’t perform as well in this system. The oil-based primer can be finished with latex paint, but a latex primer should not be used.

boiled linseed oil shine on walnut wood panel post its

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Can boiled linseed oils be used on leather?

You can use boiled oil to moisturize the leather. Linseed oil can penetrate the leather surface and form a protective coating that prevents cracking, splitting and other leather damage.

How is boiled linseed oil good for leather?

Protects leather from damage

The leather is protected from damage by using boiled linseed oils.

The boiled linseed creates a protective layer on the leather, which helps repel water and protects the leather from damage. This is especially important for leather products used in damp or outdoor environments.

The protective coating also protects the leather from scratches, stains, and other types of wear and tear over time.

Increases softness and flexibility

The boiled linseed can help improve the softness and flexibility of leather. This can make the leather more comfortable to use and wear. The high moisture and hydration abilities in this oil ensure the leather is supple and does not become stiff or brittle with time.

It is especially important to do this for leather products subjected to a lot of wear and tear. This includes shoes, belts or jackets.

Increases leather durability

Regularly conditioning leather with boiled linseed oils helps strengthen and protect leather, making it more durable.

Your leather products will last longer and be able to withstand heavy usage.

If you have leather items showing signs of ageing, linseed oils can be used to rejuvenate the leather, making it feel and look newer.

Enhances the natural beauty of leather

The natural beauty of the fabric can be enhanced by using boiled linseed oils.

The oil will bring out the grain and texture in the leather, adding depth to the material.

Additionally, boiled Linseed Oil can deepen the colour of the leather and give it a rich look.

The oil will help restore the original shine and lustre to the leather that dulled over time.

Acts as a natural treatment option

Boiled linseed is also a natural oil that can be used to treat leather products safely and effectively.

Boiling linseed is a natural alternative to synthetic treatments, which can be harsh or contain additives. It can nourish and protect leather without harming it.

It’s also good for those with allergies or sensitive skin and people who want to use eco-friendly products.

Boiled Linseed Oil vs Tung Oil


  • Linseed and tung oils are two well-known products that offer consumers a non-toxic, eco-friendly option for wood finishing.
  • The wood is safe to eat and clean.
  • It is the plant base that gives these products a natural feel.
  • The wood grain can be sealed and penetrated to prevent decay.


  • Linseed oil has a slight yellow tint after drying. This colour is different from tung oils, which dry to a clear finish.
  • Tung oil can often provide a stronger protection film. This is a better option when compared to linseed.
  • Tung oil is more water resistant than Linseed Oil. It is less water-resistant and has a lesser sealing technique.
  • Linseed oil is not a quick-drying oil. This oil will cure for a longer time than pure tung.
  • Tung oil costs more than Linseed Oil.

How to Avoid Fire?

  • BLO should always be stored in metal containers. Pour it into plastic containers to use temporarily, but metal containers are best for long-term storage.
  • If you have soaked rags with BLO, lay them flat and away from flammable materials until they are dry. You can also place the rags in a metal container filled with water.

A soaked rag causes most BLO fires. The rag can be rolled up and placed in the garbage along with newspaper, wood dust or other kindling.

It generates more heat when rolled up because no air can pass over it to cool it. The heat then reaches the flashpoint of the materials around it, and the fire begins.

How to Care for Wood finished with Linseed Oil?

Linseed oil provides a durable finish to protect the wood from wear and tear. To ensure the finish will last, you must take good care of your wood.

Here are some tips on how to take care of wood that’s been treated with linseed.

  1. Avoid placing hot objects directly on the surface of the wood.

Protect the finish with a trivet or coaster.

  1. Clean Up Spills Immediately.

Avoid allowing liquids to remain on the water’s surface for a long time.

Clean the surface with mild soap and warm water, then completely dry it with a soft towel.

  1. Avoid using harsh chemicals or abrasive cleaners on the wood.

They can cause the finish to break down and become damaged.

  1. If necessary, touch up the finish.

Apply more linseed to the wood if it starts to look dull. This will protect the wood and keep it looking good.

boiled linseed oil usage and maintenance for

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Frequently Asked Questions

How much time does boiled linseed finish last?

The finish will dry in 24 to 72 hours. This finish is fully cured and will last for about five years.

Does Linseed Oil Make Wood Waterproof?

Linseed oil is a great sealant. It is resistant to UV rays and humid environments. The wood absorbs oil and creates a seal on the inside.

Is boiled linseed a good preservative for wood?

It is a great way to protect dry wood. The wood acts like a sponge and absorbs the oil, protecting the wood’s pores. The boiled linseed will protect the wood from water and scratches. This product is a great option for wood preservation because of its excellent wood sealing properties.

Does Boiled Linseed Oil work on metal?

To prevent metal from oxidizing, boiled Linseed Oil is applied. This degreaser will protect the wood from rust and seal it. This is a cheap way to protect the metal.

Is boiled Linseed Oil Safe?

Before using Boiled Linseed Oil, it is important to follow fire safety protocols. Boiled Linseed Oil will heat up during the drying process. This is why it is highly flammable.

How many coats of boiled linseed oil?

Three coats are the maximum you will need.

Is Boiled Linseed Oil better than Raw Linseed Oil?

Boiled linseed oils are more useful than raw ones because they can be used in a wider range of applications. Raw linseed is still included in the discussion, but it’s unfair. It is a safer oil to use and benefits cricket players when they are oiling their bats.

However, the boiled version of linseed oils dries faster than its raw counterpart. It is a metal or chemical drier ideal for wood and metal finishes. You will therefore benefit more as a woodworker.

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