For the healthcare industry, we custom design and manufacture a unique line of medical equipment titanium seals. HST specializes in manufacturing glass-to-metal seals for lithium batteries used in medical implantable devices such as pacemakers, heart defibrillators, drug-delivery systems, portable diagnostic equipment, and pumps. Unlike conventional glass sealing processes, our manufacturing process does not involve chemical oxide removal processes. Our production processes are also free from the carburization process that weakens the corrosion resistant capabilities of the seal’s housing. With clean seal technology, we make ready-to-install glass seals that do not require any post machining.

We efficiently seal stainless steel as well as titanium housings with a variety of pins and glass combinations. Pins for your electrical feedthrus for critical medical equipment can be manufactured from molybdenum, stainless steel, and platinum/iridium. Besides manufacturing glass from standard materials such as Babal, TA-23, and Cabal 12, we also make our own lithium corrosion resistant glass materials. HST performs 100% leak tests on titanium seals in all types of medical equipment. Our glass-to-metal seals consistently have a minimum helium leak rate of 1 x 10-8 cc/sec.
Unit of Measure


Types of Lithium Battery Systems

N/A Lithium / Manganese Dioxide (Li/MnO2) Lithium / Poly-Carbon Monoflouride (Li/CFx) Lithium / Silver chromate (Li/Ag2CrO4) Lithium / Silver oxide+vanadium pentoxide (Li/Ag2V4O11 ) Lithium / Sulfur Dioxide (Li/SO2) Lithium / Sulfuryl Chloride (Li/SO2Cl2) Lithium / Thionyl Chloride (Li/SOCl2)


N/A Implantable Drug-Delivery & Fluid Pump Systems Implantable Heart Defibrillators Implantable Monitors Implantable Pacemakers Middle Ear and Cochlear Implants Neurostimulators

Shell Materials

N/A Stainless Steel Titanium Other Materials Available on Request

Pin Materials

N/A Molybdenum Platinum-Iridium Stainless Steel Titanium

Glass Materials

N/A Babal Cabal 12 HST Custom Lithium Corrosion Resistant Glass TA-23


N/A Brazing Glass Formulation Glass Sealing Resistance Welding


N/A Hypot (High Voltage) Testing / Breakdown Voltage Insulation Resistance Testing (Isolation) Less than 1 x 10-8cc/sec helium leak rate(100% tested)

Outsourced Services

N/A Electrochemical Corrosion Testing Glass Smelting Humidity Testing Laser Welding Machining Plating Salt Spray Corrosion Testing Stamping


N/A Less than 1 x 10-8 cc/sec helium leak rate (100% tested)

Production Capability

  • We have the ability to handle orders from ten parts to millions of parts
  • We can also do sample parts
  • HST can help you with free hermetic seal design and development to insurance you have a reliable and robust glass to metal seal
  • Advantages of Titanium

    N/A Biocompatible Lightweight Superior Corrosion Resistance

    Plating Options

    N/A Electroless Ni Plating Electrolytic Ni Plating Hard Gold Plating Pure Gold Plating And Many Others

    Industries Served

    N/A Electronic Healthcare Medical Military Sensor

    Quality Control

    N/A FDA Compliant ISO Compliant