LOCTITE Vacuum Impregnation Solutions

Impregnation resins and fully-automated equipment to seal metal and electronic parts of vehicles against fluids, gases and other elements.

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Map of the worldwide Henkel Vaccum Impregnation Centers

Global site map: Impregnation Service Centers Worldwide

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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 equipment includes dry and wet vacuums used to prepare the impregnation resin. The absence of liquid within the dry vacuum method ensures no interference with degassing the pores. Within the wet vacuum method, penetration of the impregnation resin into the part takes place at atmospheric pressure, enabling rapid processing. Once prepared, the impregnation resin fills porosities, shrinkage cavities, capillary pores and cracks to ensure resistance to external influences.

Excess sealant is removed from part surfaces through a drip-off and spin process; the most effective method for removing excess sealant with no risk of damage to the parts, while requiring very little time.

Parts are rinsed and the centrifuge prepares for the curing step. When exposed to the activator rinse, sealant at the pore entrances will cure quickly, creating a “plug” that prevents remaining liquid sealant from escaping while it continues to cure slowly by the anaerobic system.

Parts are soaked within a final rinse tank of water at 90 degrees Celcius (metal) or 50 degrees Celsius (electronics), removing the activator solution, and quickly drying and curing the part.

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

Loctite Impregnation System - Hand Electronic

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

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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

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Brochure: Henkel Loctite Impregnation Solution

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News and Events

Whitepaper

Using Vacuum Impregnation to Fill Quality Gaps for Electronics Manufacturers

Terminology

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LOCTITE Vacuum Impregnation Solutions

Contact us - How can we help you?

The Value of Vacuum Impregnation

Impregnation Process

Step 1 of Impregnation - The Vacuum Impregnation Process: Vacuum

Step 2 of Impregnation - The Vacuum Impregnation Process: Centrifuge

Step 3 of Impregnation - The Vacuum Impregnation Process: Wash

Step 4 of Impregnation - The Vacuum Impregnation Process: Rinse

Step 5 of Impregnation - The Vacuum Impregnation Process: Cure

Vacuum Impregnation Solution Options

Service Options

Equipment Options

Electrical and Electronic Vacuum Impregnation

Resins

DIE-CAST Vacuum Impregnation

Application examples

Resins

News and Events

Whitepaper

Terminology

Vacuum impregnation

Impregnation Resin

Leak Path/Porosity

Traditional sealing solutions

Dry Vacuum Impregnation

Wet Vacuum Impregnation

Circular Impregnation System

Modular Impregnation System

Centrifuge

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