Does Vibration Work? Let's Find Out!

Vibrating or knocking is a left over technique from plaster mould making, somehow it has found its way into Silicone mould making.

Great video! You consistently test theories that bounce around in makers heads and show all of the processes and even throw in variables. Love every single one of your videos!

Mastering the process thru experience and sharing your knowledge is gold!

Thanks for sharing Robert, I'm glad I finally saw this hashed out in a video.

Well informed and on the topic I've been waiting to see. Good work.

Excellent! Thank you so much! I degas. Then vibrate to aid the resin to travel through out the mold faster. I then put it in my pressure pot.

Thanks for this, I just bought a gallon set of resin. I wasn't sure how to keep the foaming down but this makes a lot of sense. Thank you for de-mystifying resin casting. Love your stuff!

this is cooool a direct response to ours comments. hugs Robert!!!

This is such an awesome channel! Thanks for sharing your knowledge.

High pours have been the only solution i have found that eliminate bubbles...if not using a pressure pot/vaccum chamber

When pouring it on a vibrator you normally pour at an angle and tilt, and do so quite slowly. That said, that's for pouring yellow gypsum into dental alginate. For a dental model.

You do make me chuckle Robert. I love your sense of humour, and your sense of fun during your experiments. I'm not a model maker but I always drop by to see what you are doing.

I de-gas my silicone AND use a fibrating table when I make silicone block molds. Works like a charm!

okay, this answers my previous question - as per your heading. need to get me one of those pressure tanks

I just found your channel and subscribed! I love these videos. Thank you!

So far the best way I have found to avoid bubbles (this is for Epoxy resin, not sure if it works on urethane) is to pour side A and B in one of those vertical clear plastic packs you can buy a hundred of for less than a dolar, then twist the opening to not let any air pass through it, you suish it to mix it with your free hand, ensuring both parts are equally combined (for some reason, probably the air pressure, mixing this way incorporates almost no air bubbles). Then you either cut or pinch one of the corners of the pack ensuring the opening is as small as posible. When I pour it into the mold that way the only times I get air bubbles it's because of trapped air due to not leaving room for vents .

You are quite a gem. I love your very interesting videos. Thank you!

This is why pressure pots are industry standard. They are not cheap to manufacture. They are not efficient to use. They come with a whole host of limitations. Despite thier faults, they still remain the best tool for the job. Thank you Bob. This is a very important video.

Thanks for the test Robert! Guess that answers that.

Thank you. I was finding vibrating resin to be little help, and I thought it was just me. I do have to say, in the days before I had a vacuum chamber, I felt vibrations helped with silicon pours. Of course, that could have just been my perception.