Imprex

What Imprex does

Imprex, founded in 1958 in Milwaukee, Wisconsin, is a contract services provider and equipment manufacturer specializing in vacuum pressure impregnation (VPI) for sealing porosity in metal castings, powder metal parts, and electronic components. The company operates three service lines — metal impregnation, electronics impregnation, and oil impregnation — and designs custom VPI systems including vacuum+pressure chambers, vacuum pumps, reservoirs, cooling assemblies, agitators, resin transfer piping, and PLC-based automation. Process specifications adhere to MIL-I-17563C and MIL-STD-276A, with ISO 9001:2015 certification supporting qualification in aerospace, defense, and medical applications.

The company sells to enterprise manufacturers across automotive (primary), aerospace, defense, industrial, and medical verticals, with self-reported relationships with the world's largest OEMs. Revenue is generated through two streams: contract vacuum impregnation services billed per part, and direct sales of custom-built VPI equipment ranging from small floor-mounted units to two-chamber OEM systems, supported by spare parts and technical service. Equipment shipments extend globally (United States, Peru, Vietnam), while services are concentrated in North America. Pricing is quote-based with no published rate cards, and customer engagement is direct B2B with named sales and business development leadership.

Since 2021, Imprex has operated as a division of Godfrey & Wing following acquisition, combining the two companies' decades-long collaborative history in vacuum impregnation into a single entity. The combined platform is positioned to deliver depth of knowledge across operations, engineering, and customer service, with capability expansions over time including VPI equipment manufacturing (1966), oil impregnation (1995), electronics impregnation (2000), and a vertically integrated anaerobic sealant business (2004).

Name

Imprex

Legal name

Imprex

Website

https://imprexusa.com

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

51–100 employees

Short description

Imprex provides vacuum impregnation services and custom VPI equipment for sealing porosity in metal castings, powder metal parts, and electronic components, serving automotive, aerospace, defense, industrial, and medical manufacturers across North America and select global markets.

Ownership category

akta.pro rank

Product category

Industrial Sealing Services

NAICS

Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Vacuum Pumps & Systems (IMAHANAD)

akta.pro secondary industry

Vacuum Systems & Components (Vacuum Pumps, Ejectors, Cups, Grippers) (IMAHAGAN)

Keywords

• Vacuum impregnation services
• Metal casting sealing
• Electronics impregnation
• VPI equipment manufacturing
• Powder metal impregnation

Headquarters

HQ city

Milwaukee

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Vacuum Impregnation Services: Provides vacuum impregnation services for metal castings, powdered metal parts, and electronic components. Services include metal impregnation, electronics impregnation, and oil impregnation. Revenue generated through service fees based on part complexity, size, and processing requirements.
2. VPI Equipment Sales: Designs and manufactures vacuum pressure impregnation systems to customer specifications. Products range from small floor-mounted systems to two-chamber OEM systems. Also provides spare parts and technical support for installed VPI systems.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Imprex provides vacuum impregnation services and designs/manufactures custom vacuum pressure impregnation (VPI) equipment. The company seals internal porosity in metal castings, powder metal parts, and electronic components to make parts pressure-tight and resistant to contamination. Services span metal impregnation, electronics impregnation, and oil impregnation processes.

Product overview

Imprex offers vacuum impregnation services and VPI equipment as a single integrated portfolio. The company provides metal impregnation services for castings and powdered metal parts, electronics impregnation for electronic and overmolded components, and oil impregnation for self-lubricating powder metal parts. Imprex also manufactures VPI (Vacuum Pressure Impregnation) equipment to customer specifications, ranging from small systems to OEM installations. These products work together to serve manufacturers who need to seal porosity in parts to make them pressure-tight and resistant to contamination.

Differentiator

Problem solved

Functional benefit

Products and services

• Metal Impregnation Services Vacuum impregnation service that seals porosity in metal castings including aluminum, brass, iron, and powder metal. The dry vacuum and pressure process uses thermal-cure and anaerobic sealants (MIL-I-17563C, MIL-STD-276A) to enable parts to withstand hydrostatic, hydraulic, and pneumatic pressures. Maximum part size 46" diameter, 65" heights.
• Electronics Impregnation Vacuum pressure impregnation service for electronic and overmolded components that protects parts from moisture, humidity, solvents, fluxes, and corrosive agents. Uses dry vacuum and pressure wet vacuum process with anaerobic sealants (MIL-I-17563C, MIL-STD-276A). Maximum part size 34" diameter, 23" heights.
• Oil Impregnation Oil impregnation service for powder metallurgy parts that provides self-lubrication, allowing parts to retain lubricant for extended periods and reduce maintenance needs. Uses wet vacuum process with maximum part size 21" diameter, 14" heights.
• VPI Equipment Vacuum pressure impregnation systems designed and manufactured to customer specifications, ranging from small floor-mounted systems to two-chamber OEM systems. Includes vacuum+pressure or vacuum-only chamber assemblies, vacuum pumps, reservoirs, cooling assemblies, agitators, resin transfer piping, and PLC automation. Optional features include chamber false bottoms, load plates, liners, rotor shaft extensions, filters, micron vacuum pumps, data logging, and capacitance metering. Also includes spare parts and technical support for installed VPI systems.

Quantifiable outcome

• Parts sealed first time, every time - ensuring part performance while protecting customer profitability
• +2 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Godfrey & WingcoreOthers · 1 January 2021Imprex was acquired by Godfrey & Wing in 2021. The two companies have a long and rich history of collaboration dating back decades. Combining both companies delivers depth of knowledge and capability unparalleled in the industry. The expertise in operations, engineering, and customer service allows the combined entity to be nimble to meet changing industry trends. Imprex operates as a division of Godfrey & Wing.

Scale indicators4 records

Recent moves11 records

Expansion highlights4 records

Broad incumbents

• Bodycote: Global provider of thermal processing and specialist metal treatment services with adjacent porosity-sealing capabilities. Comparable service-center business model and serves overlapping aerospace, automotive, and industrial customers.
• Godfrey & Wing: Parent company of Imprex and a global manufacturer of vacuum pressure impregnation equipment and provider of impregnation services. Godfrey & Wing and Imprex have collaborated for decades and together represent the broadest VPI equipment and service portfolio in the industry.
• Henkel (Loctite): Global specialty chemicals and adhesives company whose anaerobic sealants and impregnation chemistry are used by Imprex and competing service providers. A broad incumbent whose materials portfolio underpins the VPI process across the industry.

Direct peers

• Pressure Point Sealing Services: North American vacuum impregnation service provider focused on sealing porosity in castings and powdered metal parts. Directly comparable to Imprex's metal and oil impregnation service lines.
• Ultraseal International: UK-headquartered specialist in vacuum impregnation services and equipment with global operations, competing head-to-head with Imprex in automotive, aerospace, and industrial casting porosity sealing. Among the most established direct competitors to Imprex's core service and equipment offerings.
• Magna VPI Systems: Provider of vacuum pressure impregnation equipment and services serving similar metal casting and electronics sealing end markets. Competes directly with Imprex in the design, manufacture, and sale of VPI systems.

Others

• Chem-Trend: Manufacturer of release agents, sealants, and process chemicals used in die casting and metal part production. Adjacent to Imprex through shared casting-industry customers and complementary process chemistries.

Emerging players

• Dynacast (Form Technologies): Global precision die casting and metal injection molding manufacturer with significant in-house porosity control capabilities. A potential customer of Imprex's services and a benchmark for vertical integration of impregnation processes.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key highlights7 records

Customer concentration

• Xx.com/ImprexUSA
• LinkedInlinkedin.com/company/imprex-inc.

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Imprex