Acrylic adhesives and acrylate adhesives provide excellent environmental resistance and fast-setting times when compared to other resins systems. They are created by polymerizing acrylic or methylacrylic acids through a reaction with a suitable catalyst. Acrylic adhesives and acrylate adhesives cure through a free radical mechanism. While they are usually supplied in a two-component form, they do not typically require mixing. The catalyst, accelerator, or hardener can be applied to one surface and the acrylic resin to the other surface. Sufficient diffusion will occur when the surfaces are joined to complete curing of the adhesive. Acrylic adhesives acrylate adhesives are available in both emulsion and solvent-based versions. Acrylate adhesives are used in construction applications. Specialized methacrylate adhesives have been commonly applied to bond implant prostheses into bone. Many UV curable resins are acrylic base adhesives.
Important specifications for acrylic adhesives and acrylate adhesives include the viscosity of the adhesive, the required setting or curing time, and the curing temperature necessary for the acrylic adhesives and acrylate adhesives. Viscosity is a measurement of a fluids resistance to flow. Water is lower in viscosity than oil or honey. Oil is lower in viscosity than tar or molasses. Depending on the application method, the viscosity controls the amount of acrylic adhesives and acrylate adhesives dispensed onto a substrate. Curing time is the length of time required to fully set a bond system. In thermosetting, hydraulically or other chemically setting system, the time will vary depending on the actual curing temperature. Longer cure times will be required for lower curing temperatures. Also, the time required to fully dry a paste, gum based adhesive or other film drying adhesives. Curing temperature is the temperature required to cure a thermosetting adhesive, set a two-part resin system, or to dry a film evaporation-based glue. The temperature will vary depending on the actual curing time allowable. Higher curing temperatures will be required for lower cure times.
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Anaerobic Adhesives and Anaerobic Sealants
Anaerobic adhesives and anaerobic sealants cure in the absence of air or oxygen.
Cyanoacrylate adhesives are one-part acrylate adhesives that cure instantly on contact with mated surfaces through a reaction with surface moisture. Cyanoacrylates are often called super glues.
Electrical and Electronic Resins
Electrical and electronic resins includes adhesives, greases, pads, stock shapes, tapes, encapsulants, potting compounds, thermal interface materials, and electrically conductive substances used in electrical, electronics, and semiconductor applications.
Plastic and Rubber Balls
Plastic and rubber balls are rolling, spherical elements that have low friction values and require little or no lubrication. They are lighter than metal balls and resistant corrosion and abrasion. Some plastic balls resist high temperatures, but others do not. Rubber balls are characterized by a high degree of flexibility and elasticity.
Polymers and Plastic Materials
Polymers and plastic materials are organic, synthetic or processed polymers that are supplied as raw materials. They typically consist of thermoplastic or thermosetting resins in the form of pellets, powders or liquid resins. These materials can then be molded into a variety of shapes for a wide range of uses.
Rubber Adhesives and Sealants
Rubber adhesives and sealants are highly flexible, natural or synthetic materials that are used to join components or fill gaps between seams or on surfaces.
Thermal Compounds and Thermal Interface Materials
Thermal compounds and thermal interface materials form a thermally conductive layer on a substrate, between components or within a finished product.