Impregnation Compounds by Master Bond

Master Bond offers a wide variety of one or two part epoxy impregnation systems that cure to tough, strong thermoset plastics. These products are used in the mechanical and electronic applications to seal porosity in porous substrates, both metals and nonmetals. Sealing materials with Master Bond impregnation resins can increase efficiency, save time, and is cost effective. This process improves the performance of the part and allows for the use of parts that would have otherwise been ineffective. Master Bond's impregnation resins are also applied as matrix materials in the assembly of composites, such as glass reinforced plastic or carbon fiber reinforced plastic.

Master Bond's impregnation compounds can withstand the most adverse environmental conditions, and they are therefore superb for sealing materials subjected to extreme temperatures, impact, vibration, or chemicals. As matrix materials for composites, these products withstand the harsh environmental conditions of the assembly process. Specific grades offer resistance to cryogenic temperatures or temperatures up to 500°F, as well as excellent resistance to thermal and mechanical shock.

Properties of Master Bond’s Epoxy Impregnation Compounds

Master Bond's epoxy impregnation formulas bond to a large variety of substrates, including metals, ceramics, rubber, and plastic. Specific grades offer the following benefits:

  • Resistance to thermal cycling
  • Cryogenic shock resistance
  • Low outgassing
  • Low shrinkage
  • Electrical insulation
  • Optical clarity
  • Resistance to chemicals
  • Resistance to mechanical shocks
  • Serviceability at high temperatures

Advantages of Master Bond Impregnation Resins

Master Bond impregnation compounds feature long term storage stability, exceptional chemical resistance and are able to withstand elevated temperatures. Additionally, they are:

  • 100% reactive
  • Easy to process
  • Non-hydroscopic
  • Fast curing at 250°F

Applications of Master Bond Impregnation Systems

Specific applications of Master Bond's impregnation compounds include:

  • Pump housings
  • Electric armatures and rotors
  • Cylinder heads
  • High pressure systems
  • Gearboxes
  • Wound stator and rotors

Impregnation Resins for Vacuum Impregnation

When metal castings contain defects, such as cracks and pores, these parts must be subjected to vacuum impregnation in order to prevent leaks. In wet vacuum impregnation, the most common technique, the part is immersed in an impregnation resin and placed in a processing tank. After a vacuum is drawn in the tank to remove air and moisture, the increased pressure forces the sealant into the pores. The resin cures in the pores and eliminates the porosity of the part.

Master Bond's impregnation compounds are ideal sealants for vacuum impregnations. They offer resistance to vacuum treatment, high temperatures, and feature incredibly low viscosity. These compounds will provide an excellent sealing and will enhance the integrity of parts that would have otherwise been scrapped. Master Bond's impregnation systems offer a cost effective and easy solution to sealing porosity of porous materials.

Most Popular Epoxies for Impregnation Applications

Products Description
EP19LV One component liquid epoxy resin impregnant for porous metals and nonmetals . Cures readily at elevated temperatures to a tough, strong and chemically resistant thermoset plastic.
EP121CL Epoxy resin system featuring high thermal stability, superior electrical insulation properties and outstanding dimensional stability for impregnation for service up to 450-500°F.
EP110 Solventless low viscosity epoxy resin system with a long pot life at room temperature which is specifically designed for resin impregnation of porous metals and nonmetals.
EP19HT One component, storage stable epoxy resin system. Viscosity 500-600cps. Tensile strength over 10,000 psi. Excellent chemical resistance. Thermal stability up to 400°F.

Packaged the Way You Need It

We offer a wide array of packaging options to speed productivity, minimize waste and save energy including...

  • Quantities from grams to gallons
  • Cans, bottles and jars

This information has been sourced, reviewed and adapted from materials provided by Master Bond Inc.

For more information on this source, please visit Master Bond Inc.

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