I recently got a little toaster oven commited to doing blanks with. I was just curious how other people do it. do you put your blanks in the oven still in the mold, or do you remove them first? So far, i leave mine in the mold. I am afraid to do it without the mold, i dont want to open the toaster to a puddle of three boanks, but it would be nice to be able to do another pour while the first batch is in the oven.
mold in the oven
- Thread starter RAdams
- Start date
Signed-In Members Don't See This Ad
Signed-In Members Don't See This Ad
rjwolfe3
Member
So far mine have been out of the mold on a metal tray that I slide into the oven but I am no expert. I would like to hear what the experts have to say.
OKLAHOMAN
Member
Ron, I also leave my blanks in the mold when in the toaster for the first 30 minets but it dosen't stop me as I have 4 sets of molds. To save a little money until you can buy more molds go to Wally world buy a few low cost 6x6 tubberwear tubs and you can pour one color at a time to make 5-6 blanks and cut them on your band saw .
Last edited:
its_virgil
Member
am I the only one who does not post cure in an oven? Wow, I've been missing out on yet another step. Setting them in the sun for a few hours on a 105 degree day here in Texas works for me...otherwisw, no post curing for me.
do a good turn daily!
Don
do a good turn daily!
Don
dogcatcher
Member
I would have a problem where I am right now doing the baking outside. Today's high in Ruidoso, NM was only 74. Guess I will have to wait until next month when I get home.
it is about that hot here in SW Oklahoma as well. but i usually pour late in the evening when my non air conditioned shop has cooled off.
Roy, that is a good idea. I would have to cut them up on my tablesaw, as i don't have a bandsaw (yet). Even if i did, i would have to come bother you for a day, that is if you would be willing to teach a guy how to use one!
I was just curious if they would sag or anything if not supported by the mold. I know they are usually still warm when put them away, and they don't sag so i guess it wouldnt hurt if thy went in the oven with no mold.
Roy, that is a good idea. I would have to cut them up on my tablesaw, as i don't have a bandsaw (yet). Even if i did, i would have to come bother you for a day, that is if you would be willing to teach a guy how to use one!
I was just curious if they would sag or anything if not supported by the mold. I know they are usually still warm when put them away, and they don't sag so i guess it wouldnt hurt if thy went in the oven with no mold.
ngeb528
Member
Ron,
Are you using a pressure pot? What kind of PR are you pouring?
I use Silmar 41 and a pressure pot. After about 4 hours, I take it out and pop it out of the mold, let it sit overnite and voila, fully cured PR.
I also cast stoppers in medicine bottles without the pressure pot and they cure just fine. No oven needed.
Are you using a pressure pot? What kind of PR are you pouring?
I use Silmar 41 and a pressure pot. After about 4 hours, I take it out and pop it out of the mold, let it sit overnite and voila, fully cured PR.
I also cast stoppers in medicine bottles without the pressure pot and they cure just fine. No oven needed.
hmmm.
I am casting silmar 41 as well, with a pressure pot.
I mix my hardener (approx 10 drops per oz), and mix for about three minutes. then i pour the PR in my molds (silicone pen blank mold and med. bottle for stopper. Then i pressurize up to 40 pr 50 pounds and let sit for 45 minutes. Then i bake them at 150 for 45 minutes. After that, they go in a drawer overnight at least. Usually sit there for a few days before they get shuffled to the front of the line.
I have had no issies at all with air bubbles, or brittle blanks.
Timing wise, I am going to try to bake the blanks without the mold. If i can do that, the mold can be in the pressure pot while the last set of blanks bakes. I could kick out 3 pen blanks and a bottle stopper blank every 45 minutes that way!
I am casting silmar 41 as well, with a pressure pot.
I mix my hardener (approx 10 drops per oz), and mix for about three minutes. then i pour the PR in my molds (silicone pen blank mold and med. bottle for stopper. Then i pressurize up to 40 pr 50 pounds and let sit for 45 minutes. Then i bake them at 150 for 45 minutes. After that, they go in a drawer overnight at least. Usually sit there for a few days before they get shuffled to the front of the line.
I have had no issies at all with air bubbles, or brittle blanks.
Timing wise, I am going to try to bake the blanks without the mold. If i can do that, the mold can be in the pressure pot while the last set of blanks bakes. I could kick out 3 pen blanks and a bottle stopper blank every 45 minutes that way!