Elastomer and Rubber Shapes Specifications

Form / Shape


	Form / Shape
	Your choices are...
	Semi-finished / Shaped Stock (Bar, Sheet, etc.)		Semi-finished or shaped stock forms of plastics or elastomers include bar, sheet, film, profiles, or other shapes suited for part fabrication by machining, forming, welding, mechanical assembly or other processes.
	Fabricated Shape / Part (Molded, Cast)		Polymers or elastomers fabricated into finished shapes or parts using molding, casting, extrusion, pultrusion, machining, thermal forming, plastic welding, blow molding, rapid prototyping techniques, grinding and/or other specialized processes. The exact dimensions and tolerances of the finished molded or cast parts are typically made-to-print based on the OEMs requirements and the supplier's in-house capabilities.
	Film / Sheet		Material supplied or available in the form of sheet or film. Sheet has thickness between 0.006" and 0.250" and is 24 inches (609.6 mm) or over in width. Sheet is typically formed to precise thicknesses and/or width requirements.
	Flat / Bar Stock (Square, Rectangular)		Material supplied or available in the form of bar with a rectangular (flat) or square cross section.
	Plate		Material supplied or available in the form of plate. Plate has a thickness of at least 0.250" or 1/4 inches or more.
	Profile / Structural Shape (Angle, Channel, I-Beam, Tee)		Material supplied or available in the form of an extrusion profile or structural shape such as angle, channel, I-beam, tee, rectangular tube or other cross sectional shapes.
	Rod / Round Stock		Material supplied or available in the form of bar or rod stock with a round cross section.
	Hex Stock		Material supplied or available in a hex stock form with a hexagonal shaped cross section.
	Shim / Shim Stock		Thin stock manufactured to precise thicknesses for shimming, chocking or spacing applications.
	Sphere / Ball (Bearing Ball)		Material is available in the form of a sphere or precision ground ball. Precision balls are used in fabricating bearing balls, ball valve balls, check valve balls, and measuring balls.
	Specialty / Other		Other specialty, proprietary or unlisted material forms.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Hollow / Tubular Stock?		Material supplied or available in the form of tube, pipe or hollow stock with an open internal bore.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Cast / Cast Stock?		Products are in the form of a cast stock or shape such as cast nylon or polyamide rod or plate.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Extruded / Extrusion?		Products are in the form of an extruded stock or shape such as a nylon or polyamide extrusion.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Molded / Molded Stock?		Products are in the form of a molded stock or shape such as compression-molded composite rod or plate.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

Size / Dimensions


	Overall Thickness		Overall thickness (for stock shape) of a stock form, tube wall or another fabricated component. Stock forms include bar, rod, plate or tube.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Overall Width / O.D.		Width or outer diameter of stock form material such as bar, plate, tube. Also, the average particulate diameter of raw materials such as powders, granules or pellets.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Overall Length		Length of a stock form material such as bar, rod, plate or tube.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	ID		Inner diameter or internal dimension of a tube or other hollow stock shape.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

Features & Industry


	Features
	Your choices are...
	Anti-static / ESD Control		Material designed with relatively high electrically conductivity or low electrical resistivity for electronic, anti-static or electrostatic discharge (ESD) applications.
	Electrical Insulation / Dielectric Material		Dielectric compounds and electrical insulation materials are used to form a barrier or isolator between electrical or electronic components. The voltage potential between the conductor and conductive components will influence material selection based on the dielectric strength in order to reduce shorting. Dielectric constant and loss tangent are important parameters in minimizing crosstalk between insulated circuit paths.
	EMI / RFI Shielding Material		Polymers or elastomers designed to provide shielding from electromagnetic interference (EMI) or radio frequency interference (RFI). Typically, these compounds have a high degree of electrical conductivity.
	Flame Retardant / UL 94V-0 Rated		Products are flame retardant in accordance to Underwriters Laboratories, Inc. (UL) Flame Class 94V-0 or other equivalent ISO standards. These materials reduce the spread of flame or resist ignition when exposed to high temperatures. They also insulate the substrate and delay damage to the substrate.
	Flexible / Dampening		Products are designed to provide flexibility or dampening of sound, vibration or shock in suitable applications. Flexible adhesives or sealants form a layer that can bend or flex without cracking or delaminating.
	UL Approved		Products are approved to or recognized under the requirements of Underwriters Laboratories, Inc. (UL).
	Thermal Insulation / Heat Insulating		Thermally insulating resins, plastics, compounds and encapsulants provide a thermal barrier between components and a hot or cold source.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Industry:
	Your choices are...
	Aerospace		Products are designed for aerospace applications. For example, they can be used to bond composite structures to other composite or metallic frame components.
	Automotive		Products are designed for automotive applications. For example, they can be used to bond panels and seal windows.
	Electronics		Products are designed for electronics applications. For example, they can be used in potting or encapsulating compounds, conductive adhesives, and dielectric sealants.
	Electrical Power / HV		Products are resins, compounds and plastic composites suitable for electrical power or high voltage applications such as generator or motor assemblies, coil or transformer manufacturing, and switch or circuit breaker insulation.
	Semiconductors / IC Packaging		Products are designed or suitable for semiconductor or semiconductor packaging applications.
	Marine		Products are designed for marine applications. They can be immersed in water and withstand exposure to marine atmospheres.
	Medical / Food (Sanitary / FDA)		Products are suitable for medical or food-contact applications. They typically comply with requirements from regulatory agencies such as the Food and Drug Administration (FDA), U.S. Department of Agriculture (USDA), National Science Foundation (NSF), 3A-Dairy, Canada AG, or USP Class VI.
	Military / Government (MIL-SPEC / GG)		Products adhere to U.S. military specifications (MIL-SPEC).
	Optoelectronics / Photonics		Products are designed for optoelectronics or photonics applications such as cements for bonding simple lenses into compound structures.
	OEM / Industrial		Products are designed for use by original equipment manufacturers (OEMs) for the assembly, sealing or fabrication of products.
	Optical Grade / Material		Polymers or elastomers designed for optical or photonics applications such as transparent polycarbonate or acrylic lens materials.
	Repair (MRO) / Construction		Products are designed for use by construction contractors and in maintenance, repair and operation (MRO) applications. Adhesives or sealants can be designed for general-purpose construction or architectural applications. Construction materials include wood, wood products, glass, cement products (mortar, concrete, masonry), plaster board, metal trim, flooring tile, sub-floor or underlayment, plaster board, sheet metal roofing or flash, metal ties, insulation materials (fiberglass, foam) and bitumen-based roofing materials.
	Tooling / Mold Material		Products are designed for tooling or mold fabrication such as polyurethane shapes or castable silicones.
	Other		Other unlisted industry.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Thermal Properties


	Use Temperature		Use temperature is the range of temperatures to which products can be exposed without the degradation of structural or other required end-use properties.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Thermal Conductivity		Thermal conductivity is the linear heat transfer per unit area through a material for a given applied temperature gradient. Heat flux (h) = [thermal conductivity (k) ] x [temperature gradient ( T)]
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Coeff. of Thermal Expansion (CTE)		Coefficient of linear expansion (CFE) is the amount of linear expansion or shrinkage that occurs in a material with a change in temperature.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

Mechanical Properties


	Tensile Strength (Break)		Tensile strength at break is the maximum amount of stress required to fail or break the material under tension loading test conditions. Tensile tests are typically performed according to test procedure standards such as ASTM D-638 or ISO 527-1, ASTM D-1708, ASTM D-2289 (plastics at high strain rates), and ASTM D-882 (thin plastic sheets) as well as other OEM proprietary standards.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Tensile Modulus		Young's modulus or the modulus of elasticity is a material constant that indicates the variation is strain produced under an applied tensile load. Materials with a higher modulus of elasticity have higher stiffness or rigidity.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Elongation		Elongation is the percent amount of deformation occurring during a tensile test or other mechanical test.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

Electrical & Optical Properties


	Electrical Resistivity		Resistivity is the longitudinal electrical resistance (ohm-cm) of a uniform rod of unit length and unit cross-sectional area. Resistivity is the inverse of conductivity.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Dielectric Strength		Dielectric strength is the maximum voltage field that the material can withstand before electrical breakdown occurs.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Dielectric Constant (Relative Permittivity)		The dielectric constant is the relative permittivity of a material compared to a vacuum or free space. k = _r= / _o= where is the absolute permittivity of the material and _ois the absolute permittivity of a vacuum 8.85 x 10^-12 F/m.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Index of Refraction		The index of refraction is a measure of the speed of light in a material.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Transmission		This is the amount of light transmitted through a material.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

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