jdmyers4
Member
When do you want to use a vacuum system vs pressure system when casting and/or stabilizing wood?
When to use vacuum/pressure ?
- Thread starter jdmyers4
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gketell
Local Chapter Leader
That is a "hornets' nest" of a question!
One thing is for sure, if you are using alumilite, you don't have time for both so just use pressure. For PR it is a tougher question. I use both every time I cast PR but others only use pressure and their blanks turn out fine. My opinion is the only time you would NEED vacuum is when you are trying to fill nooks and crannies. you want to suck all the air out so when you release the pressure the crannies suck the PR deep into them. Then the pressure just has to compress little tiny bubbles rather than a "bubble" the size of your cranny.
GK
One thing is for sure, if you are using alumilite, you don't have time for both so just use pressure. For PR it is a tougher question. I use both every time I cast PR but others only use pressure and their blanks turn out fine. My opinion is the only time you would NEED vacuum is when you are trying to fill nooks and crannies. you want to suck all the air out so when you release the pressure the crannies suck the PR deep into them. Then the pressure just has to compress little tiny bubbles rather than a "bubble" the size of your cranny.
GK
karlkuehn
Banned
Man, I hate it when I get a bubble in my cranny. [
]
Wrecks the whole casting experience. heh
Nice set up, Greg. I saw the low-hangin' fruit, so I snatched it.
Good explanation, too!
]Wrecks the whole casting experience. heh
Nice set up, Greg. I saw the low-hangin' fruit, so I snatched it.
Good explanation, too!
gketell
Local Chapter Leader
Karl,
I'm glad I could provide you with your late night fruit snack. [}]
Don't forget to cast the seeds of your fruits and make a pen out of it!!
GK
I'm glad I could provide you with your late night fruit snack. [}
]Don't forget to cast the seeds of your fruits and make a pen out of it!!
GK