• These lid are designed to fit our 30ml high-form crucibles (#CHF-30). Sold in a pack of 20 lids. They are uniform, dense, and have stable mechanical strength and little permeability. When properly used, the glazed pieces withstand temperatures of 1050°C and the unglazed pieces 1350°C.
• They are uniform, dense, and have stable mechanical strength and little permeability
• When properly used, the glazed pieces withstand temperatures of 1050°C and the unglazed pieces 1350°C

These lid are designed to fit our 30ml high-form crucibles (#CHF-30). Sold in a pack of 20 lids. They are uniform, dense, and have stable mechanical strength and little permeability. When properly used, the glazed pieces withstand temperatures of 1050°C and the unglazed pieces 1350°C.