casting in pyramid mold

[Bonnie Rubinstein]

first time casting- I am casting in a pyramid mold, about 3" high and 3" wide at base. Using system 96. Will use bits and pieces of glass. They do not have a schedule for a deep mold. I assume I will get lots of bubbles, and run the risk of breakage if it is not annealed properly.

Have anyone cast in this type of mold with 96, and can offer a schedule?
Thanks!

[beninfl]

I'm curious too, I unpacked my Slympys Pyramid mold last night and gave it a spray of MR-97. It's a lot bigger than I thought it would be.

[Bonnie Rubinstein]

I used primo primer on mine. did I need to use boron?

(FYI- I have a smaller pyramid as well, brand new , if you want to buy it.)

any schedules out there?

[DonMcClennen]

I've cast several... the size and number of your bubbles will change with the size of glass chunks you use... bigger chunks less bubbles.
Standard kilnwash coating works fine.

[Bonnie Rubinstein]

Don, do you have a schedule? Do you use 90 or 96?
thanks

[JestersBaubles]

Here is the bullseye schedule. I found this by googling "pyramid mold firing schedule"

http://www.bullseyeglass.com/methods-id ... sting.html

Dana W.