Triad Flatop Dropout Ring. At 6" from corner to corner the vessel this mold produces is fantastic. Outside mold dimensions: 8.5"

This will be the sturdiest mold you have ever owned! Short of dropping them on the ground we don’t see these molds disappointing you. Made of a super flat and smooth mullite/cordierite composite material. Listed dimensions are exact…No waiting till you get the mold to make glass to fit it! We have not seen these molds crack, warp or crumble in any way during regular in our studio.

Slumping molds/dropout rings should be coated with some sort of separator to prevent the glass from sticking to the mold. Standard shelf primer works fine but we’ve learned it can be a bit too slippery from time to time. OnGrade Studio highly recommends coating these narrow dropout rings with DŌP: dropout paste, which is available in this store.