Return to Help Index

Common Mold Questions
Can I use a microwave kiln with your molds?/Can I use your molds in my kiln?
	If your kiln ramps up at a rate faster than 400°F per hour, we do not suggest using it to fire our molds. A change in temperature faster than this can cause cracking or breaking. Microwave kilns fire at rates greatly exceeding this, so we strongly recommend against firing our molds in microwave kilns. Some non-microwave kilns do not have controllable ramp rates, and will heat at temperatures exceeding this rate. We do not recommend using our molds with these kilns.
Can you all make me a custom mold?
	Unfortunately we do not make custom molds. However, the lovely people at Petro Mold Company do. Click here for a link to the Custom Mold page on their website!
What do I do if my glass is stuck in the mold?
	Don't panic! Sometimes it may not be stuck. If the glass itself isn't cracked, it may not be completely stuck. You can try submerging the whole mold into cold water- this may get rid of any extra separator that may be stuck as well as loosen the glass. You can also try inverting the mold onto a soft, level surface and thumping the back a few times.
What glass separators can I use?
	We recommend using ZYP spray for the best results with our molds. Other boron nitride sprays work well too. The brand Slide's "Hi Temp" separator will not work with our molds. If you use kiln wash, make sure it is COMPLETELY dry before putting any glass in or on the mold, otherwise the glass can stick.