By Ray Rogers - 12/11/2014 5:33:59 PM
I have today mixed and poured my first mould. Whilst degassing small (100 gram) mixes the rubber certainly bubbled up but I did not notice any significant 'collapse' as shown on your tutorial video, even after approximately 5 minutes.
The degassing chamber negative pressure was in excess of 0.8 bar. I left the pump running and chamber outlet valve open during this period.
Any reason I did not notice a collapse and is that negative pressure ok?
Regards
Ray
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By Warren (Staff) - 5/7/2015 10:20:00 AM
Hi,
For small pots of silicone there may not be much air to come out so it may not be as dramatic. Also the top surface area in a typical pot would be proportionately bigger for a small quantity.
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