Discover our vacuum impregnation services and ensure metal and electronic automotive parts are sealed against harsh environmental elements.
LOCTITE® vacuum impregnation services use resins that cure into an impermeable thermoset polymer, permanently sealing pores or leak paths. This ensures parts are clean, corrosion-free, and ready for use without post-treatment, enabling the production of quality lightweight, thin-walled die-casted parts or electronic components.
The vacuum impregnation process guarantees the complete sealing of metal and electronic automotive parts against fluids, gases, and other elements, preparing them for just-in-time assembly. With our LOCTITE product range and vacuum impregnation services, we eliminate porosity-related concerns, lowering costs, production setbacks, and customer discontent.
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There are two impregnation methods that can be used: dry or wet. In the dry vacuum method, the absence of liquid guarantees no disruption to the degassing of pores. The wet vacuum method uses atmospheric pressure, allowing the impregnation resin to rapidly fill porosities, cavities, capillary pores, and cracks, ensuring resistance to external influences.
A drip-off and spin process using a centrifuge, efficiently removes excess sealant from part surfaces. This step is highly effective in eliminating excess sealant without posing any risk of damage to the parts and requires minimal time.
The parts are washed with the oscillator providing agitation, while the centrifuge prepares for the rinsing step. Another option is to use compressed air agitation in the water.
After rinsing the parts, the centrifuge readies for the curing step. When exposed to the activator rinse, the sealant at the pore entrances will rapidly cure, forming a "plug" that hinders any remaining liquid sealant from escaping. The slow curing process continues through the anaerobic system.
The parts are immersed in a final rinse tank filled with water at 90°C (for metal impregnation process) or 50°C (for electronic impregnation). This process removes the activator solution, ensuring rapid drying and curing of the part.
Process optimization
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Performance
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Cost reduction
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Sustainability
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Safety and comfort
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The benefits of our vacuum impregnation technology are accessible through impregnation service center affiliates located across North America, including Baron Industries, Industrial Finishing, Metaplastics, Nebraska Aluminum Castings and St. Mary’s Metal Finishing.
Microscopic voids are naturally present in numerous electronic assemblies, especially in the assembly of metals and plastics. Our FARASEAL resin impregnation process effectively seals even the tiniest gaps and leak paths in vital electrical and electronic components, providing a permanent barrier against moisture, solvents, fluxes, and other corrosive agents.
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Metal casting vacuum impregnation enables the salvage of parts that would otherwise be discarded due to structural defects. Our products are designed to consistently deliver clean, leak-proof, and sealed parts, prepared for just-in-time assembly.
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Get in touch with our experts and start exploring advanced materials solutions today.
