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Electrical Resins and Electronic Compounds

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About Electrical Resins and Electronic Compounds

Electrical resins and electronic compounds are adhesives, greases, pads, stock shapes, tapes, encapsulants, potting compounds, thermal interface materials, and electrically conductive substances used in electrical, electronic, and semiconductor applications. There are several basic types of electronic resins and electronic compounds. Electrically conductive products provide low resistivity and are often used to prevent electrostatic discharge (ESD), electromagnetic interference (EMI), and radio frequency interference (RFI). They are also used in thick film metallization and to provide electrical interconnections at both the device and circuit board level. Thermally conductive electrical resins and electronic compounds are applied between a heat-generating electrical device and a heat sink in order to improve heat dissipation. These products form a thermally conductive layer, either between components or within a finished product. Thermal interface materials that use a phase change are also available. 

Electrical resins and electronic compounds use many different chemical systems and filler materials. Some chemical systems contain acrylics, elastomers, natural or synthetic rubbers, epoxy resins, water-based resins, silicone compounds, or volatile organic compounds (VOCs). Others contain bismaleimide (BMI) resins, phenolics, formaldehyde resins, cellulosic thermoplastics, liquid crystal polymers (LCPs), or vinyl compounds. Commonly used chemical systems include polyamide, polybutadiene, polycarbonate (PC), polyolefin, polypropylene (PP), polysulfide, and polyurethane (PUR). In terms of filler materials, some electrical resins and electronic compounds include aramid fiber, chopped fiber, carbon powder, or graphite powder. Other products contain glass fillers, metal fillers, or inorganic compounds. Unfilled electrical resins and electronic compounds are also available. Typically, these raw materials are used as starting components in the production of finished coatings.

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Products & Services Related to Electrical Resins and Electronic Compounds

Conductive Adhesives and Compounds
Conductive adhesives and compounds provide an electrically and/or thermally conductive path between components.
Conformal Coatings
Conformal coatings encapsulate circuit boards and their electronic components in order to prevent the ingress of moisture, fungus, dust and other environmental contaminants.
Epoxy Adhesives
Epoxy adhesives are chemical compounds for joining components. They require clean surfaces and are valued for their toughness and resistance to chemical and environmental damage.
Gel Elastomers
Gel elastomers are highly viscoelastic polymer gel materials that have excellent shock absorption and damping characteristics. They are available in a variety of material types and grades.
Pressure Sensitive Adhesives (PSA) and Contact Adhesives
Pressure sensitive adhesives (PSA) and contact adhesives adhere to most surfaces with very slight pressure. They are available in solvent and latex or water-based forms.
Silicone Adhesives and Sealants
Silicone adhesives and sealants have a high degree of flexibility and a very high temperature resistance (up to 600° F), but lack the strength of other epoxy or acrylic resins.
Thermoplastics and Thermoplastic Materials
Thermoplastics and thermoplastic materials soften when heated and harden when cooled. They can withstand many heating and cooling cycles and are often suitable for recycling.

Engineering Web: Electrical Resins and Electronic Compounds

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ASTM F641 -98a(2003) Standard Specification for Implantable...
ASTM F641 - 98a(2003) Standard Specification for Implantable Epoxy Electronic Encapsulants
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ASTM International - Laboratory Directory
COATINGS > Adhesives (organic resins), glues ELASTOMERS AND PROTECTIVE COATINGS > Plastics, rubbers, resins COMPOSITE MATERIALS > Composite Materials
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