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Global site map: Impregnation Service Centers Worldwide

The Value of Vacuum Impregnation

Vacuum impregnation enables metal and electronics parts of vehicles to be fully sealed against fluids, gases and other external influences and ensures they are ready for just-in-time assembly. After impregnation, all parts are clean, free of corrosion or oxidation, and are ready for use without post-treatment. LOCTITE vacuum impregnation solutions provide resins that cure to an impermeable thermoset polymer. This makes it possible to permanently seal pores or leakpaths to enable quality lightweight, thin-walled die-casted parts or electronic components.

Impregnation Process

With an unmatched portfolio of LOCTITE products and our fully automated vacuum impregnation system, we can ensure that you no longer face the negative effects of porosities, such as cost of scrapping, loss of production, dissatisfied customers or even lost business. Our state-of-the-art impregnation technology gives you a permanent and reliable sealing solution to the problems of porosities and leakages.

Vacuum Impregnation Solution Options

Service Options

We offer a number of different service locations to our customers and you can choose from the following options below.

  • On-site: Temporary installation of a small but customized impregnation service center directly on-site.
  • Co-located: Henkel provides the necessary impregnation equipment for use on-site, as needed.
  • Close-by: Enjoy the advantages of our sealing solutions from an external impregnation service center located close-by your manufacturing plant.
     

Equipment Options

A variety of equipment options are available for casting impregnation, including the LOCTITE Circular Sealing System, the LOCTITE Modular Sealing System and the ability to create customizable equipment, based on customer needs and specifications.

LOCTITE Circular Sealing System
Well suited for high-volume, fully automated impregnation solutions, the LOCTITE Circular Impregnation System functions in five steps, beginning with parts placed in processing baskets and positioned in the CIS loading station.

LOCTITE Modular Sealing System
Offers production flexibility at an affordable investment price. Can function as a manual system or fully automated robotic system.

Electrical and Electronic Vacuum Impregnation

Microscopic voids are inherent in many electronic assemblies, particularly where metals and plastics are assembled together. Our resin solutions seal even microscopic gaps and leak paths in critical electrical and electronic components, permanently sealing them from moisture, solvents, fluxes and other corrosive agents.

Application examples

  • Connectors
  • Sensors
  • Plugs
  • Coils and solenoids
  • Pastic housings
  • Plastic covers
  • Over molded electronics
  • Cables
  • Wire harness
Resins

We offer different resins to meet your application and material challenges:

LIS
LOCTITE IS 5100 LOCTITE IS 5110 LOCTITE IS 5500
Chemical type
Methacrylate Methacrylate Methacrylate
Cure method Anaerobic Anaerobic Anaerobic
Appearance Clear, fluorescent Clear, fluorescent Clear, fluorescent
Viscosity 23°C, mPa.s 
5 – 30 36 – 66 at 25°C 5 – 30
Chemical resistance Excellent Excellent Excellent
Temperature resistance -54°C to +177°C +205°C +177°C
Resin recycling No No No
Application area Soft and flexible product for electronic parts with leak paths Rigid and unflexible product with excellent chemical and temperature resistance for electronic parts Electronics

Sales sheet: The Seal of Quality

DIE-CAST Vacuum Impregnation

Casting impregnation allows you to make use of parts that would otherwise have to be scrapped due to structural defects. Our products have been developed to deliver consistently clean, leak-proof and sealed parts ready for just-in-time assembly.

Application examples
  • Engine blocks
  • Cylinder heads
  • Engine covers
  • Transmission cases
  • Compressor components
  • Cooling/oil pumps
  • Crank case
  • Torque converter housings
  • Oil pans
Resins
LIS
LOCTITE IS 90R LOCTITE IS 88C LOCTITE IS RTC
Chemical type
Methacrylate Methacrylate Methacrylate
Cure method 90°C 90°C Anaerobic
Appearance Clear, fluorescent Clear, fluorescent Clear, fluorescent
Viscosity 23°C, mPa.s 
6 – 10 8 – 10 5 – 15
Chemical resistance Excellent Excellent Excellent
Temperature resistance -90°C to +200°C -90°C to +200°C -90°C to +204°C
Resin recycling No No No
Application area Castings with typical porosity range Castings with typical porosity range Casting with macro porosities, powder metal

Sales sheet: Detailed information for castings

Brochure: Henkel Loctite Impregnation Solution

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