Did I miss something in the Casting tutorial?

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I use wax paper cups (dixie). You can get them in 3,5,7,9oz sizes which are perfect for any size casting job. If you want something reusable you can find those silicone muffin pans/cups (flat sides, not the crinkled) and use them as mixing cups. Just peel out the leftovers and you're ready to go. I used to use the clear plastic cups but I can't remember which ones or codes they were.
 
I actually use solo brand graduated mixing cups, they have the measurement increments from 1.5 oz all the way up to 8 or 9 oz. I think for a sleeve of 50 i paid like $20 bucks and that included shipping. But clearly my casting and brooks castings are two different styles so I suppose it would depend on what type you are doing. For me, i need precision measuring when casting my quarters, when making colored blanks I'm not so sure accuracy is as important. Maybe others will chime in on their methods and type of cups they use.
 
Recycle code 5 plastic cups work great, especially if you are putting them in an ultrasonic sink to heat the resin. I am currently using cups from Sparkletts water that were left over from when I had that service. Sometimes you can find recycle code 5 cups at dollar stores, but bring a magnifying glass with you, the print is so small...that's my story and I'm sticking to it!
 
I used plastic disposable cups, but I let the resin sit in one too long the last time I casted blanks and the bottom of the cup melted, made quite a mess. I intend on using paper cups the next time I cast any blanks.
Thanks for the tip in this topic. I didn't know the paper cups with wax coating would work..I'll have to pick some up, when and if I remember. lol
 
If you like to heat the resin in a toaster oven to the consistency of water before mixing in the catalyst to reduce bubble formation, I have found that the plastic and paper cups don't hold up.
 
Silicone muffin cups are my favorite. I bought four pans and cut them into single cups for a total of 48. These are easy to clean out and reuse, and after 12 gallons of resin show no wear, so I think that they are a good investment.
 
larryc said:
If you like to heat the resin in a toaster oven to the consistency of water before mixing in the catalyst to reduce bubble formation, I have found that the plastic and paper cups don't hold up.
Click to expand...

You do realize that uncured resin and the fumes it generates is flammable. That inside a toaster oven is a bad idea.
 
Russianwolf said:
larryc said:
If you like to heat the resin in a toaster oven to the consistency of water before mixing in the catalyst to reduce bubble formation, I have found that the plastic and paper cups don't hold up.
Click to expand...

You do realize that uncured resin and the fumes it generates is flammable. That inside a toaster oven is a bad idea.
Click to expand...


Well then let me knock on wood! Cuz I've been doing it for over a year now and have had no issues. I think the stupid factor has to be there in order for it to happen. LOL. I heat my resin in the ultrasonic cleaner for around 8 minutes, pour into the mold(which was pre-heated in the toaster oven at 150 for 15 min), and then knock any bubbles off and put back into the toaster oven for another 15 min at 150degrees. Then i walk away and let it cool down on its own while i do something else.
 
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