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H-Seal (Metal Seal)
Custom Metal Fabrication

Bostec's revolutionary H-Seal are the most reliable, flexible and cost effective metal seals in existence. H-Seal™ provide an ultra high vacuum (UHV) seal that is particle free, impermeable to moisture and are interchangeable with elastomeric O-rings. Learn more about H-Seal ...

Guaranteed 100% reliable
Interchangeable with Elastomeric O-Rings
Cryogenic to 500+° C
Sizes from 0.300" to 14"
Available in Nickel, Aluminum, Copper


All Seals Incorporated
The Sealing Specialists
2110 S. Yale Street
Santa Ana, CA 92704
Phone: (714) 556-4931
Fax: (714) 557-3257


Neoprene - Neoprene Rubber

Trade Names:

  • Neoprene (formerly) - E.I. du Pont de Nemours Company
  • Butaclor - Distugil
  • Petro-Texneoprene - Petro-Tex Chemical Company

Neoprenes are homopolymers of chloroprene (chlorobutadiene) and were among the earliest of the synthetic rubbers available to the seal manufacturers.

Neoprene can be compounded for service at temperatures of -65 degrees +300 degrees F (-54 to +149 degrees C). Most elastomers are either resistant to deterioration from exposure to petroleum lubricants or oxygen. Neoprene is unusual in having limited resistance to both. This, combined with broad temperature range and moderate cost accounts for its desirability in many seal applications.

Chloroprene is recommended for:

  • Refrigerants (Freons, ammonia)
  • High aniline point petroleum oils
  • Mild acid resistance
  • Silicate ester lubricants

Chloroprene is not recommended for:

  • Phosphate ester fluids
  • Ketones (MEK, acetone)



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We can supply custom gaskets designs in any material and in virtually any shape or size. Gaskets can be die cut (steel rule or harden compound), molded, extruded, water jet cut or laser cut. Send your drawings for quote or call to discuss product or material design perimeters with our engineering department.


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