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Casting resins are pourable plastics used to cast parts, make molds or form structures in place. Typically, casting resins are mixed with a hardener, catalyst or activator and then poured into the sprue of open molds. Some casting resins contain acrylic, polyimide, polyurea, and silicone adhesives. Others contain thermoplastic materials with trimellitic anhydride or thermosetting resins such as melamine. Casting resins are used in a variety of applications, including semiconductors; generators and motors; coils and transformers; and switches and circuit breakers.

Many casting resins are made of polymers or elastomers. Thermoset resins are cross-linked polymers cured using heat or pressure. Elastomers are synthetic compounds or rubber materials that provide a high degree of flexibility and elasticity. Some polymers and elastomers are designed for electronics applications and are used as thermal interface materials, encapsulants, and potting compounds. Typically, thermal interface materials are used between a heat-generating electrical device and a heat sink to improve heat dissipation. Encapsulants are used to seal or cover circuits from mechanical and environmental ingress.  Potting compounds are dielectric resins used to fill containers or pockets containing electronic components. Casting resins that contain polymers and elastomers are also used in optical and photonics applications, and in mold fabrication and tooling.


Products & Services Related to Casting Resins
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 silicone sealants have a high degree of flexibility and very high temperature resistance.
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.
Thermosets and Thermoset Materials
Thermosets and thermoset materials are crosslinked polymeric resins that are cured or set using heat or heat and pressure. They generally have a higher resistance to heat than thermoplastics.

Other Topics You Might Be Interested In
Butyl is a commonly used term for the isobutylene isoprene elastomer. It is known for its resistance to water, steam, alkalis and oxygenated solvents. Butyl has a low-gas permeation and is capable of... (Read More)
Epoxy (EP) resins exhibit high strength and low shrinkage during curing. Epoxies are known for their toughness and resistance to chemical and environmental damage. Most epoxies are two-part resins... (Read More)
Styrene copolymer products are based upon a styrene copolymer system such as styrene acrylonitrile (SAN), acrylic styrene acrylonitrile (ASA), acrylonitrile ethylene styrene (AES), styrene maleic... (Read More)

Engineering Web: Casting Resins
Pages: 1 - 5 of 235624
CASTING RESINS
CASTING RESINS.  . Casting is the process of producing a part in a mould. Resins can be cast as a pourable liquid/or they can be "laid up"; laminated by hand with reinforcing cloth of glass or carbon ...
Alumilite Corporation
Alumilite?s liquid plastics (casting resins) are non-toxic, extremely user friendly, and virtually odorless.. On top of the incredible line of urethane casting resins, Alumilite is also your single ...
See Alumilite Corporation Information
Composites Process: Casting Resins
... Casting Resins Casting Resins. Resins for casting. Casting is a production process for composites in which parts are cast by hand or machine, usually without reinforcements.  Reichhold is a major ...
See Reichhold Information
FMSC - Epoxy Casting Resins
Aluminum-filled epoxy casting resins (gray in color) are not as heavy, are more readily machinable, and are available with higher temperature resistances. Epoxy casting resins generate heat (exotherm ...
See Freeman Manufacturing & Supply Co. Information
Casting Resins
Casting Resins . Epoxy casting resins are versatile products that can provide an excellent solution to a variety of industrial applications. They generally contain a filler of some type that is ...
See PTM & W Industries, Inc. Information

Part Numbers for Casting Resins

Part # Distributor Manufacturer Product Category Description
52M8419 Newark 3M Non-Stocked Products 3M 5 Scoth Cast Resin - Newark, a market-leading distributor of electronic components. Non-Stocked > Non-Stocked Products
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Tooling Epoxy

Tooling Epoxy
Rudolph Bros. & Co.


NOTIO™

NOTIO™
Mitsui Chemicals America, Inc.


VICTREX PEEK Performance Oil & Gas Industry

VICTREX PEEK Performance Oil & Gas Industry
Victrex plc.


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