How to treat an oak interior door
An oak interior door immediately adds warmth and character to your interior. But to preserve its natural appearance, it is important to treat your oak door correctly.
Have you just installed a new oak interior door? Then it is important not to wait too long before applying the first treatment.
But how exactly should you do it? Which oil should you use? How many coats are needed? And should you treat an oak door again after a few years?
Find out below!
Why should you treat an oak interior door?
Oak is a natural material and, without protection, it is significantly more sensitive to moisture, dirt and wear.
A proper oil treatment is therefore essential. During the treatment, the oil penetrates the wood and protects the surface while preserving the warm, natural appearance of the wood.
When should you treat an oak interior door?
Oak doors and door frames must be treated within a maximum of 7 days after installation.
Which oil should you use for an oak interior door?
At Solid, we recommend Ciranova products, or products with an equivalent chemical composition.
Our favourites?
Ciranova Hardwaxoil Magic
Ciranova Hardwaxoil Magic is a very matt oil with a natural appearance. It has good filling properties and offers high chemical and mechanical resistance. For hard woods such as oak, 2 coats are required.
The oil can optionally be combined with 5% UA hardener to further improve its chemical and mechanical resistance.
Ciranova Woodlook+
Would you like to preserve the light, natural appearance of the oak as much as possible? Ciranova Woodlook+ is another option.
Woodlook+ is a water-based PU impregnating oil that gives the wood a lightly bleached and ultra-matt appearance. The finish does not yellow. With this product, 3 coats are required.
Oak veneer should also be treated in the same way as oak, as it remains a natural product. Because the veneer layer is glued onto an MDF substrate, certain softer structures may give the appearance of glue marks.
This is not a defect in the wood, but a normal characteristic of products with a thin natural veneer layer. These marks can become more visible when the wood is treated in a dark colour. We therefore advise against using a product that significantly changes the colour of your oak door or frame, such as coloured varnish or paint.
Tip! Whatever finish you choose, always test the product on a small, inconspicuous area first. The final colour can be influenced by the type of wood, the sanding process and the amount of product applied.
Step-by-step: treating an oak door
Choosing Ciranova Hardwaxoil Magic? Please follow the steps below.
#1 Sand the oak carefully
Sand the wood evenly before applying the oil.
For Hardwaxoil Magic, Ciranova recommends a final sanding with P100-120 grit.
Be careful! When working with an oak veneer door, it is particularly important to work carefully. You don't want to damage the thin veneer layer.
Always follow the recommendations for your specific door and the product you are using.
#2 Remove all dust
After sanding, make sure the surface is completely free of dust.
Any remaining dust or dirt can affect the final result of the oil treatment.
#3 Apply the first coat of oil
Shake and stir the Ciranova Hardwaxoil Magic well before use.
Then apply a thin, even coat using a suitable brush or cloth. Make sure the oil is evenly distributed across the entire surface.
Don't just treat the visible part of the door or frame. The top and edges must also be treated.
Allow the oil to penetrate for a few minutes, then remove the excess with a pad or cloth until the surface feels dry to the touch.
Important! Do not leave a thick layer of oil on the wood. More oil does not automatically mean better protection.
#4 Allow sufficient drying time
Allow the first coat to dry sufficiently before applying the next one.
Ciranova recommends a drying time of approximately 6 hours. The exact drying time can of course vary depending on the amount of oil applied, temperature, humidity and ventilation.
Always ensure sufficient ventilation and check the technical data sheet of the product you are using.
#5 Apply a second coat
For oak, Ciranova recommends 2 coats of Hardwaxoil Magic. Apply the second coat in the same way as the first: spread the oil evenly and remove any excess.
Once again, don't forget the top and edges of your door.
#6 Allow the door to cure completely
A door may feel dry after a while, but that does not mean the oil has fully cured.
Hardwaxoil Magic is fully cured after approximately 7 days. During this period, the wood should not come into contact with water or cleaning products.
Give your door enough time to cure completely before cleaning it intensively.
How often should you treat an oak door?
Luckily, an oak interior door does not need to be oiled very often.
How often the treatment needs to be repeated depends on how much the door is used and its condition. It makes sense: a door that is used intensively every day will show signs of wear sooner than one that is rarely used.
The golden rule? If your door becomes duller, feels drier or appears less well protected, it is time to re-oil it.
Ciranova recommends using a maintenance oil for periodic maintenance. In case of heavy soiling, it is better to use an intensive cleaner first.
So you don't necessarily need to treat your door every year. However, regular cleaning and treating it again when necessary will help keep your door looking beautiful for longer.
A few more tips
- Maintain a stable indoor climate and ensure sufficient ventilation. The temperature difference must not exceed 5°C. Wood naturally reacts to changes in temperature and humidity. Large fluctuations can create tension in the wood and eventually cause problems. Pay particular attention in rooms with higher humidity. Good ventilation is also important during and after installation.
- Always use the right product. We advise against coloured varnishes, paint or other products that significantly change the colour of the wood. If an unsuitable product is used, Solid cannot intervene.
- Always test the product on a small area first. Every oak door is unique. The structure of the wood, the sanding process and the amount of oil applied can affect the final result.
- Read the technical data sheet before you start. Instructions can vary depending on the product. Always check the technical data sheet before use.
- Treat all sides of the door. The visible front is not the only part that needs protection. The back, top and edges should also be treated.
- Be careful with used cloths. Oil residues and oil-soaked cloths can pose a risk of spontaneous combustion. Ciranova recommends immersing used cloths and pads in water after use.
