12-15-2010, 10:07 AM
(12-14-2010, 10:01 PM)erospawn Wrote: One more thing to note on that as well.. You don't necessarily need to degas the rubber, although doing so will make your life much much easier... I did it this way a few times while getting the vac stuff sorted out. The trick is mix slowly... then get as high as you can and pour the thinnest stream of rubber in to your mold box, pour slowly. When you pour it, don't pour directly on top of the part. Let it rise up and slowly cover the part to be molded. It will take time and usually does well under pressure...so, if you're desperate to get started, you can try that.. But, degassing is much a better way to go.
Thanks Eros, Sorry don't know your given name,
I've seen that technique on a few videos. The small stream to the low part of the mold. Someone described it as the bombs away technique, LOL. As much as these products cost I don't really mind an extra step of degassing. Better that than getting a failed mold. As soon as I get some rubber and resin, I'll give her a go and see what's what. I'll probably get a small kit and practice a little. I have enough of one of the Roco models, to make a gang mold. I'll need a bunch of those little suckers, so it's a good place to start. It's been cold here lately, for Georgia that is. Hopefully as long as the room is above 75 or so, I'm guessing everything will cure alright. I'm still an absolute noob at the casting process. Thats why I'm here picking your noggins, Thanks for the great input. It really is helpful, Cheers,Joe