I've recently purchased this silicone and a pump. I've watched your videos and admit that I'm new to all this.
But does this stuff go off? It seems VERY thick.
I mixed to 10% by weight, stirred slowly to avoid bubbles and trickled from the mixing cup to a wide-bottomed container within my vacuum chamber. This seemed to create more bubbles that I already had.
I turned on the pump and sure enough everything expanded very quickly... but it NEVER collapsed. Several minutes went by and I gave up.
I trickled over the pattern and could see loads of bubbles. It took over 5 minutes to trickle less than 100g of silicone. Is it always this slow and resistant to movement?
I placed the pattern in the vacuum chamber.
Quick expansion of bubble... never collapsed.
Does this stuff go off? Am I missing a step? I have far too many bubbles setting within the silicone.
Here's a video of the whole affair if it helps : https://youtu.be/JcAs4bQkRGc
I sped the whole thing up by 20x as it's so slow.