Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jul 20, 2012
How to build a vaccum degassing chamber for under £40.00GBP. A further design modification is to use a variable speed vacuum cleaner. I now use "Hetty" and also I have deliberately made one of the pipes NOT perfectly air tight. Hetty sucks the air under a lower pressure whilst not over heating. The pot does not change shape now that I have a slightly lower pressure suck. It is perfect for degassing a silicone mould.