◀ Ji-woon Kim, CEO of World Building Materials ▶
Hello, this is Ji-woon Kim, CEO of World Building Materials.
Today’s content is about a product called carbonized wood.
We will show you the process of making carbonized wood.
There is a method called Nakdongbeop, which our ancestors have practiced since ancient times.
Since wood is weak against moisture, burn it with fire to make it stronger against moisture.
Creates an interior feel
It is said to be a method that allows it to be used for a long time.
Because there was no such thing as sandpaper in the old days.
After burning it, scrape it off with a straw.
Save the part where the knot lives
It is said to be a method of expressing a three-dimensional effect by inserting the missing parts.
Then, I will slowly show you how to burn each product.
In the case of plywood or laminated board, this is because they are not solid wood.
It should never be made from carbonized wood.
There is a phenomenon that causes me to lose consciousness. I will show you that phenomenon.
Because laminated wood is not solid wood joined with a bond,
Do not burn it
Rather than telling you the case in words, I would like to show it directly.
Safety equipment and safety devices are prepared.
First, let's try burning the plywood.
In the case of plywood, I brought 24mm thick self-made plywood.
I'll show you how to smoke it with a torch.
I've currently burned it with a torch like this.
It just smolders and is not evenly distributed.
It only gets tanned like this.
Because the bonds were built layer by layer,
There is a phenomenon where only the top surface burns and dries.
The second is jipseongmok.
As the bond fluid comes out, the bond bursts.
It looks like the tree is not functioning properly.
This is the third embossed product called spruce sawing.
It's wood. I'll burn it.
As moisture is lost, it becomes carbonized wood.
Spruce sawing logs are scorched in this way.
There is a slight burnt feel to the knots and the color is evenly distributed throughout.
The fourth is Sugi embossed wood.
This is Japanese red cedar, which is made by cracking and processing raw wood to make interior materials.
Let's torch the wood.
It smells like a sauna.
I burned one side entirely like this.
Because it was raw wood, the carbonized wood turned black without any oozing.
If you look at the back, the original color of obisuki (Japanese red cedar) is red.
In the case of embossing, it is a scraping technique called a brush.
The emboss is a three-dimensional expression.
When you burn it, what goes in goes in and what comes out comes out.
The fifth is 1x4 (width 19mm height *89mm) structural finishing material.
When you look at it, it feels plain.
Let's try a method to create a three-dimensional effect.
with ordinary nails
Let's create a brush shape.
I made nail marks in several places and made them like sewing or embossing.
Since there are no machines at home, you can create a three-dimensional effect using things like nails.
One side is flat and the other side has marks. I'll try burning it.
The part that goes in is white and the part that comes out is black.
For comparison, let's burn the plain part on the opposite side.
It feels like wood, like carbonized wood.
This is not the end, I will show you the sanding process.
I brought 220 grit fine sandpaper and cut it to size.
I pushed it out with sandpaper and it looked like this
Carbonization of wood is completed naturally.
Unlike the immaculate feel of raw wood, the color of carbonized wood is coming to life.
I will also sand the brushed area on the back.
It looks pretty to do this when you want to make a unique expression.
This is how we expressed it and explained plywood and laminated wood.
When making carbonized wood, you should always use raw wood.
Laminated boards and plywood cannot be used because the bond joints may burst.
Please always perform carbonization work on raw wood.
This was World Building Materials.
#woodworking #wood #test