Cobheran
New Member
Hi everyone! I'm kind of new here so go easy on me. I recently built myself a vacuum tank (or rather a vacuum lid to put on my pressure tank) so I could degas RTV (Smooth-On's Mold Max 30 in this instance) for larger molds. When I put the mixed RTV in the tank and hit the vacuum (29"hg WOOO) it expands all huge-like and bubbles away, then settles down and starts to boil. My question is do I leave it to boil? or once it starts boiling is it done? And if it's not done how long should I let it boil for? Sorry if this seems like a silly question but I couldn't really find an answer for it in the other vacuum chamber threads.
Here's a shot of my tank and the Mold Max in a bucket. It's a little messy but it works well. (.5 plexi for the lid with an input, release, and vac gauge, routed .375" and filled with Mold Max 30 for the seal.)
http://www.flickr.com/photos/cobheran/7377693412/
Here's a shot of my tank and the Mold Max in a bucket. It's a little messy but it works well. (.5 plexi for the lid with an input, release, and vac gauge, routed .375" and filled with Mold Max 30 for the seal.)
http://www.flickr.com/photos/cobheran/7377693412/