Udindo wa strontium carbonate mu glaze: frit ndikusungunula zopangira kapena kukhala thupi lagalasi, lomwe ndi chinthu chomwe chimagwiritsidwa ntchito kwambiri popanga glaze.Pamene pre-smelted mu flux, ambiri mpweya akhoza kuchotsedwa glaze zopangira, motero kuchepetsa m'badwo wa thovu ndi mabowo ang'onoang'ono pa ceramic glaze pamwamba.Izi ndizofunikira kwambiri pazinthu za ceramic zomwe zimakhala ndi kutentha kwakukulu komanso kuwombera kwakanthawi kochepa, monga zoumba za tsiku ndi tsiku ndi zoumba zaukhondo.
Frits pakali pano amagwiritsidwa ntchito kwambiri pamiyendo yadothi yowotcha mwachangu.Chifukwa cha kutentha kwake koyambirira kosungunuka komanso kutentha kwakukulu kowotcha, frit ili ndi gawo losasinthika pokonzekera zinthu zama ceramic zomwe zimayaka mwachangu.Kwa porcelain yokhala ndi kutentha kwakukulu kowotcha, zopangira zimagwiritsidwa ntchito nthawi zonse ngati glaze yayikulu.Ngakhale frit imagwiritsidwa ntchito pa glaze, kuchuluka kwa frit ndi kochepa kwambiri (kuchuluka kwa frit mu glaze ndi osachepera 30%.
Kuwala kopanda lead ndi gawo laukadaulo la frit glaze ya zoumba.Amapangidwa ndi zinthu zotsatirazi polemera: 15-30% ya quartz, 30-50% ya feldspar, 7-15% ya borax, 5-15% ya boric acid, 3-6% ya barium carbonate, 6- 6% ya stalactite.12%, zinc oxide 3-6%, strontium carbonate 2-5%, lithiamu carbonate 2-4%, slaked talc 2-4%, aluminium hydroxide 2-8%.Kupeza zero kusungunuka kwa lead kumatha kukwaniritsa zosowa za anthu pazadothi zathanzi komanso zapamwamba.