Rayotek Scientific, Inc. - San Diego, CA
Manufacturer, Custom Manufacturer, Service Company
ISO 9001:2008 certified, full design standard, minority owned. Manufacturer of quartz-to-glass seals or sealing. Types of sealing include fused glass, organic & braze sealing. Various applications include level & flow gages, sight indicators, furnaces & heater systems. Capabilities include designing, engineering, prototyping, molding, slumping, polishing, machining, grinding, cutting, brazing, sealing & strengthening.
www.rayotek.com/tech-specs/sight-windows.ht...

PEG, Inc. (Precision Electronic Glass) - Vineland, NJ
Custom Manufacturer
ISO 9001:2008 certified custom manufacturer of glass & quartz fabricated products including glass-to-glass seals, glass-to-metal seals, quartz-to-glass & graded seals.
www.pegglass.com/applications.html

Quartz Scientific, Inc. - Fairport Harbor, OH
Distributor, Manufacturer, Custom Manufacturer, Service Company
Manufacturer of seals. Seals can be made from 3 in. quartz to 4 in. borosilicate glass. Dimensions include inner diameter ranging from 2 mm to 42 mm and outer diameter from 4 mm to 45 mm. Metal seals such as Kovar®, copper and stainless steel seals are available. Seals of larger sizes are also available.
fusedquartz.qsiquartz.com/viewitems/o-pyrex...

Quartz-to-Glass Seals Products
	Graded Seals, Quartz to Pyrex, Quartz to Stainless Steel

G.M. Associates, Inc. - Oakland, CA
Distributor, Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer & stocking distributor of seals for quartz-to-glass apparatus. Specifications of 3 in. ID x 5 in. OD to 50 in. ID x 54 in. OD tubing size.
gmassoc.thomasnet.com/viewitems/quartz-ball...

Quartz-to-Glass Seals Products
	Graded Seals

McDowell and Company - Plano, TX
Manufacturer, Custom Manufacturer
Manufacturer of seals including buna-n, high-temperature, metric, plastic, quartz-to-glass & lathe cut seals. Other materials available include aluminum, stainless steel, titanium, nickel, tungsten, bronze, Inconel®, beryllium copper, tungsten copper & various ceramics. CAD/CAM & engineering services available. Serves the automotive, bio-technology, food service & production, semiconductor, gas & petroleum industries.

Gage Glass - Mcdonough, GA
Distributor, Custom Manufacturer
Distributor of quartz to glass seals.

IJ Research, Inc. - Santa Ana, CA
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of seals. Includes identification, anti-pilferage, mechanical, plastic, quartz-to-glass, rubber, T, terminal, vacuum, & window seals. Also includes ceramic & metal seals for highly corrosive chemical analysis, with temperature applications from minus 290 to plus 1200 degrees Centigrade. Serves aerospace, medical, military, oil, telecommunication, & high temperature markets.

Wilmad-LabGlass - Vineland, NJ
Distributor, Manufacturer, Custom Manufacturer, Service Company
ISO 9001:2008 registered manufacturer & distributor of standard & custom quartz to borosilicate glass graded seals. Specifications include 5 mm & 8 mm OD, 3 mm & 6 mm ID, 4 in. glass length & 3 in. quartz length. Meets ISO 8655 standards.