How Does Silicone React In A Vacuum Chamber

Hello guys! We went back to the lab again to conduct another (silicone molding) experiment.

You may recall, in a previous video I tried to pour some of these Pokemon balls with silicon.

The problem was that our air bubbles were trapped in rubber, which in turn turned into successful casting processes.

So in this video, we will try to refill these balls, and see if we can produce bubbles free templates.

And so in an analog video, we made these, they are compartments designed to pull the air out of silicon before we set it up.

In this video we will put it under test, we brought the air drawer, the Pokemon balls, and brought us more silicon.

Let’s start working on making more rubber molds.

Now, I have shown you in a previous experiment that you can use biscuit containers as an air drawer, but for this experiment I will return to use the pressure cooker.

They are large enough to contain a pot of popcorn that I found in the store everything in dollars, its price is about one dollar.

It is perfectly positioned here, you can see that the lid is completely closed and everything is clean.

Because it is paper it is used once, which means easy cleaning process.

Well, the Pokemon balls are ready and in place, and I’ve worked a different course this time, let me show you what I did.

First, the Pokemon balls are placed vertically and upward, so the air bubbles formed by accident rise up on the path of the lines on the ball

Second, I took a little clay and made a base at the bottom. This helps to build up a reserve, so that it can be pulled out of it if it is candy, wax or molten aluminum during its cooling until the balls are filled.

Hopefully after these improvements we can manufacture perfect silicone molds

Now we can mix a new batch of silicon and use the vacuum chamber to pull out the air bubbles, and then casting it into the sides of the mold away from the ball itself

The higher the level of liquid that is supposed to push any trapped air bubbles and give us an ideal silicone band

Now we mix the silicon and the catalyst together but the mixture is full of air bubbles

So now we will move it to the pot of popcorn and put it in the vacuum chamber and pull out these air bubbles

In practice, we want to fill it with one-third, as I understand, because the bubbles of the clouds will, unfortunately, lose more than a third

So we must be very careful

Let’s go ahead and get out the air bubbles

(Pump sound)

I can control the air from here

You can see the negative pressure that extracts the bubbles from the depths of the silicon

It does not give it room to explode

Ohooh, ah

Chaos

Well, a lesson we just learned, when you put silicone in the empty room you have to make it fill only a third because the bubbles will go up and contaminate everything

If there is no room for the bubbles to rise and start to explode, the cover will touch and everything will destroy and return the process

So you have to leave enough room for the bubbles to climb up and give her the chance to escape

Ooh, this was imminent, it was imminent!

And this my friends is magic

This is pretty nice, if I move it I can go to different parts of silicon and get to these bubbles faster

Wow, this sounds amazing

The way he moves is really exciting

You can see that it has reached the silicon depth and that it pulls all these bubbles

The longer we leave it, the longer bubbles emerge from silicon

Ideally it reaches a stage where it does not contain any bubbles, but I am a little worried because of time because I want to pour it before it hardens so I will output it now

It seems ready

We pulled out most of the air bubbles

Now I’m excited to see what the difference this is

During the casting of the silicon it is important to set it up like this next to the Pokemon ball

But beyond them

And we want it on the ball itself

You can see that I have painted a thin layer of silicon on the balls

For the sake of subtle areas, which may cause problems

Where the bubbles are not trapped there

Slow and quiet wins the race

This may be a lot

Slows are slower

Oh, woe

I’m making a mess

It looks nice

Oh my God, this looks nice

Our molds were filled up

Our molds were filled up

These templates look better than I have seen before

In fact if you look at the surface of these molds

It is like a clear lake

Everything reflects beautifully

This is very good and means that it does not contain air bubbles inside it

Now there are some lessons we learned during this experiment

The first lesson is not to mix silicon at once

Working with a lot of silicon is very tricky

We fight the time because these materials harden within 30 minutes

So if you are trying to do it yourself silicon bands in different batches

And they mixed it all on my own

Lesson 2 When mixing the wire I suggest mixing it by hand

Because by doing so you reduce mistakes

Instead of using the container I was using

It actually creates many air bubbles

This means that it takes longer in the vacuum

To remove those bubbles again

So if you can mix it with your hands

This is what we have today because these molds need 24 hours to solidify completely

So we’ll let it harden at night and take a look at the results tomorrow

Thank you for joining me in this project, waiting for you in another video, I talk to you later ….

Oh God, I made a mess

I will have to clean this later

Thank you for watching and remember that I am now giving you a new video

All you have to do for the winner is to subscribe to the channel and choose to be alerted when the new video is released

The secret link will be in the comments for only 12 hours

If you are impressed by what you do, support us by admiring the video and sharing it with your friends

I love you and I will see you next time …..