DIY Oil-Based Varnish

08/18/2016 11:26:10   Categories: Luthiery , Tips

As promised, today I'm going to show you how to prepare a very useful oil-based varnish for all kinds of wood and wood by-products, outdoors and indoors. I also it use on musical instruments. I'm going to prepare two compounds. The first one, which we'll use as base, will have a liquid consistency, whereas the second one, which we'll use as finish, will contain a little carnauba wax making it thicker.

I will use a blend of oils and essences to prepare it. Our mixture should be made with only pure, natural products, not the chemically processed ones that you will find in drug stores, mixed with metals and other substances. Click here for a link where you can find them.

To apply on kitchen utensils or cutting boards it's better to use only pure linseed oil, take a look at my other article "How to make kitchen utensils"


The first ingredient is Tung oil. This oil is obtained from the seeds of the Chinese tree it's named after. When applied on wood, it not only protects the wood, it also hardens when it's absorbed creating a waterproof layer. 

These products must be mixed at about 45 degrees Celsius to obtain a homogeneous mixture. Once the temperature has been reached, we pour it into the bottles according to the ratios on the mixture chart.


Next up is Linseed oil. This oil, obtained from the seeds of the flax plant, protects wood against humidity, insects, fungi, and UV light. The resulting mixture of these two oils will be the base of our varnish, making up 50% of the compound. At this point, I will mark the bottles to distinguish them.


The next ingredients are Orange essence, which makes it easier for the blend to penetrate wood; Camellia oil, known for its magnificent antioxidant and aromatizing properties, and Turpentine essence, which will be used as thinner.

I'm going to heat up these three components together to 45 degrees Celsius using a water-bath, since these substances are quite volatile. We must be careful not to exceed this temperature or the mixture could dry.


Once the temperature has been reached, we will fill up the bottles according to the ratios on the mixture chart. We won't fill the bottle with the thick mixture all the way up to leave room for the wax. We shake the thin mixture vigorously and it's finished, so we can put it aside for now.


We'll finish the other compound with Carnauba wax. This product, obtained from the leaves of a palm tree that grows northeastern Brazil, is known for its gloss and wear resistence, much higher than that of beeswax. Its melting point is 78 to 85 degrees Celsius. Using this flame, dissolving the wax takes about 8 minutes. We add it to the compound and shake the mixture vigorously. If lumps appear, we can put the bottles in the microwave for about 30 seconds and shake again.

THIN:

Linseed + Tung base 50%

Turpentine essence 20%

Orange essence 20%

Camellia oil 10%

THICK:

Linseed + Tung base 50%

Turpentine essence 18%

Orange essence 18%

Camellia oil 9%

Carnauba wax 5%

Where to get some materials and tools used in this project:

Visit the Oil-Based Varnish Topic in Forum:

Related posts

Share

View all comments (2)

12/11/2018 12:11:18

Suso

hola Rafael, vuelve a meter toda la mezcla en el microondas(bote de plástico), solo unos pocos segundos serán suficientes, ve probando de 5 en 5 segundos. Luego agita bien el bote y conseguirás una mezcla más homogénea. Saludos!

12/11/2018 00:53:31

rafael

como mesclo la sera com lo demas , salen grumos , gracias

Add a comment

 (with http://)

Forum

Wood projects, Tools and Machinery • Re: Granite sharpening surface
hello mate,I use self-adhesive sandpaper, but you can also use normal sandpaper and double-sided t...
Autor: Suso · 08 Nov, 2019 - 10:21h
Wood projects, Tools and Machinery • Granite sharpening surface
Good day. I saw in one video you use a similar setup as what I have made with a level granite surf...
Autor: d.wvanlingen · 08 Nov, 2019 - 07:35h
Wood projects, Tools and Machinery • Re: Why should I build my own tools?
Great post man!! valuable information to take into consideration....
Autor: bcrepairs · 04 Nov, 2019 - 00:06h
Wood projects, Tools and Machinery • Re: Rotary Tool 3-in-1 Workstation
I've tried my new rotary tool workstation making a new truss rod cover for one of the guitars I ma...
Autor: Suso · 02 Nov, 2019 - 14:42h
Router & Saw Table • Re: Ask me about Homemade Router and Saw Table.
hello mate,one of the first two you'll find here:Try using cable of at least 2mm in diameter....
Autor: Suso · 02 Nov, 2019 - 10:32h
Router & Saw Table • Re: Ask me about Homemade Router and Saw Table.
Table now built, next the accessories. Struggling to work out what to buy for the on/off safety s...
Autor: SRW_Cricket · 01 Nov, 2019 - 13:45h
Multi-Function Workbench • Re: High Capacity Multi-Function Workbench
I was thinking if I glue two sheets together, although not as nice as the countertop, the surface...
Autor: Chri · 31 Oct, 2019 - 18:58h
Portable Workshop • Re: Urgente, duda medida pieza 26
hola de nuevo,Aquí y aquí puedes ver para que son esos insertos roscados.Te recomiendo ver ese v...
Autor: Suso · 30 Oct, 2019 - 11:07h