Industrial and Military Specifications

Imprex meets the requirements of vacuum pressure impregnation specs, including industrial and U.S. military specifications (MIL-SPEC). Since 1958, Imprex has conceived, built, and tested thousands of VPI systems, concepts, and formulations. Our facility is ISO 9001:2015 certified for high quality and reliability. We have the experience and quality control to manage the specification-intensive industrial and military markets.

Imprex pressure vessels are built to ASME Code. ASME is the American Society of Mechanical Engineers, one of the world’s original standards-developing organizations. We comply with all specifications of the ASME BPVC (Boiler and Pressure Vessel Code), which regulates the design and construction of pressure vessels.

Military Impregnation Specs

Impregnation of Porous Metal Castings and Powdered Metal Components

Impregnants for Cast or Powder Metal Components

Industrial Specs

  • Boeing Aerospace BAL 5591
  • Boeing Aircraft BAL 5500
  • Chrysler MS9543
  • Cummins Diesel 18187
  • ESAN M4G210-A
  • Ford ESEM4G17B
  • General Dynamics 0-041350
  • GM 9985734
  • NSF (National Sanitary Foundation)
  • Underwriters Laboratories Inc.

A Standard of Excellence

In addition to meeting quality specifications and process requirements, Imprex closely monitors and documents each stage of the vacuum pressure impregnation process. Learn more about our commitment to quality.

You can also explore the broad range of industries that rely on Imprex for sealing porosity in their parts.

Whether you are interested in sending your parts to be Imprexed in our job shop, or you want a VPI system of your own, contact us today.