QSl is the only manufacturer that offers this unique blend of purity, size, and strength at such an economical price. ULTRA-Q FUSED QUARTZ TUBING is manufactured using the same technology developed by QSI for the production of TYPE TPL FUSED QUARTZ CRUCIBLES. QSI has long been the industry leader in quartz crucibles used for single crystal silicon growth.
Now, the same process technology has been employed to produce ULTRA-Q FUSED QUARTZ TUBING.

• 130mm to 240mm ID, corresponding OD +13mm
• Any length your furnace can handle, and up to 6 feet long without a splice
• Longer service life, up to 3 times that of clear fused quartz
• Greater puritv (99.99+ % SiO2)
• 6.4 mm heavy-wall construction
• Lower potential of furnace-produced impurities migrating to wafers
• More uniform heat transfer
• Improved recovery time
• Minimized devitrification
• Additional thermal shock resistance
• Eliminates need for opaque-quartz, protective, furnace liner tube (liner benefits are incorporated into the QSI TPL diffusion tube)
• Easily fabricated to your specs
• Easily repairable
• Functional over a wider temperature range
• Lower per/load tube costs

Clear Fused Quartz Diffusion Tubing

• Available in sizes ranging from 60/64mm (ID/OD) to 185/191mm, length 60"
• Larger sizes available up to 500mm ID upon request

Clear Fused Quartz Tubing

• Available in nominal dimensions from 1mm ID x 2.2mm OD to 250mm ID x 260mm OD

Clear Fused Quartz End Caps

• Available in joint sizes ranging from 71/60mm to 200/75mm.
• Available with 1" diameter hole for furnace profiling.
• Other lengths and configurations available on special order.

• Available in cap diameters ranging from 70/74mm (fits 60/64mm) to 195/201mm (fits 185/191mm).