8 Apr
2005
8 Apr
'05
11:21 a.m.
From: "Jay West" <jwest at
classiccmp.org>
---snip---
Ok, total neophyte input here on my part. But most of the techniques I've
seen involve doing the casting inside a small dixie cup. If the problem is
air bubbles, what about using a common (at least back in the 70's) device
that many people still have in their kitchens... a "seal-a-meal". Mine has a
vacuum attachment, to suck the air out of the container. So what about
putting the cast inside a mason jar, to which you've hooked up the
Hi
Just be careful using glass containers with a vacuum.
Usually these jars have some nice gooey stuff inside them
when they fail from a vacuum. Without that stuff inside,
the glass can go flying everywhere. Use safety glasses.
Even metal containers can be dangerous when they collapse.
Still, glass works well because you can watch for the
stuff outgassing and making too much foam. It is much
easier to regulate how fast the vacuum it done.
Dwight
seal-a-meal (or maybe the backend of an aquarium pump)
to suck out all the
air and let the cast set in a vacuum?
Maybe a nutball idea, as I haven't a clue about this stuff. Just a thought.
Jay