Rubber and Elastomer Molding Services Specifications

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Capabilities


	Molding Type:
	Your choices are...
	Blow Molding		Blow molding is a process commonly used when parts are hollow in design. It is similar to injection molding except that hot liquid thermoplastic rubber elastomer enters the mold vertically, in a hollow molten tube or "parison." The mold closes on it and compressed air blows up the parison like a balloon, forcing it outward to conform to the inside shape of the mold. After cooling, a hollow part emerges.
	Cast Urethane		Urethane elastomers, as a class, have excellent wear resistance, high tensile strength and high elasticity in comparison with other elastomers. Permeability is good and comparable with butyl. Suggested operating temperature (-40° to 125° F).
	Compression Molding		In compression molding, a slug of rubber is pressed between two heated mold halves. This is generally done with vertical presses as opposed to the horizontal presses used for injection and blow molding. After being formed the part is air-cooled. Both tooling and piece part prices are moderate.
	Dip Molding		A process similar to hot dip coating in which the finished product is the fused plastisol stripped from the dipped mold. Dip molding is used to produce such parts as gloves, grips, and protective caps.
	Injection Molding		In the injection molding process, liquid rubber is forced into a cooled mold under tremendous pressure. After the material solidifies, the mold is unclamped and a finished part is ejected.
	Liquid Injection Molding (LIM)		Liquid injection molding (LIM) is a suitable process for high volume production of silicone and fluorosilicone products and materials. The process involves injection of a dual component mixture, a catalyst and crosslinker into a heated, pressurized mold. Thermosetting takes place during a short time span and the end result is a high quality product.
	Transfer Molding		In transfer molding, the two mold halves are clamped together and the rubber or silicone is forced by pressure into the mold. A chamber (called a pot--usually at the top of the mold) and the assembly is placed in a press. The press applies pressure to a piston-like plug in the open end of the pot, clamping the halves of the mold together and forcing the rubber to flow through one or more spruces into the heated mold.
	Other		Other, unlisted, or proprietary molding type.
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Materials


	Materials
	Your choices are...
	Butyl		Butyl is a common term for the isobutylene isoprene elastomer. It is known for its resistance to water, steam, alkalis, and oxygenated solvents. It has low gas permeation and is capable of providing high-energy absorption (dampening) and good hot tear strength. The range of suggested operating temperatures is -75° to 250° F.
	EPDM		Ethylene propylene (EPDM) offers good resistance to sunlight, weathering and ozone. It has poor resistance to petroleum oils and fuel, but features good heat and compression set resistance. The range of suggested operating temperatures is -70° to 275° F. EPDM's trade names include Nordel® (DuPont Dow Elastomers), Vistalon® (Exxon Mobil Chemical), Epsyn® (DSM Elastomers), Royalene® (Uniroyal Chemical), and Epcar® (B.F. Goodrich).
	AFLAS^TM		Highly fluorinated, carbon-backboned polymers resist harsh chemical and ozone attacks and provide good thermal stability. AFLAS™ offers low compression set and excellent aging characteristics. The range of suggested operating temperatures is -10° to 300° F. AFLAS is a trademark of the Asahi Glass Co., Ltd.
	Fluoroelastomer (FKM - Viton®, Fluorel®, etc.)		A range of tailorable fluoropolymer elastomers. They are normally black and have high heat, oil and chemical resistance, but indifferent low temperature performance. With the exception of Kalrez® (DuPont Dow Elastomers), perfluorinated elastomer, they are about the most highly temperature resistant of all commercially available elastomers. Trade names include Viton® (DuPont Dow Elastomers), Fluorel® and Aflas™ (Asahi Glass Co., Ltd.), and Technoflon® (Montedison).
	Fluorosilicone (FVMQ, FMQ, FPM, FSI)		The mechanical and physical properties of fluorosilicone are very similar to silicone; however, fluorosilicone offers improved fuel and mineral oil resistance but poor hot-air resistance in comparison. The range of suggested operating temperatures is -100° to 350° F. Fluorosilicone's trade names include FSE® (General Electric Co.), Silastic® (Dow Chemical), and Sylon® (3M Corporation).
	Natural Rubber		Natural rubber includes compounds such as gum rubber (polyisoprene) and latex.
	Neoprene		Neoprene is a synthetic rubber that resists degradation from sun, ozone, and weather. It performs well in contact with oils and many chemicals. Neoprene remains useful over a wide range of temperatures, displays outstanding physical toughness, and resists burning inherently better than exclusively hydrocarbon rubbers. Neoprene also offers resistance to damage caused by flexing and twisting. The range of suggested operating temperatures is -45° to 230° F. DuPont Dow originally engineered neoprene.
	Nitrile (NBR, XNBR, HNBR)		Nitrile provides good resistance to petroleum hydrocarbons and fuels. It is used widely with most oils, hydraulic fluids, and alcohol. Many compound variations are available for specific applications. The range of suggested operating temperatures is -30° to 275° F. Trade names include Breon® (BP Chemicals), Chemigum® (Goodyear), Hycar® (B F Goodrich), Krynac® (Polysar Ltd.), Nipol® (Zeon Chemicals), Nysyn® NBR, (DSM Elastomers), Paracril® (Uniroyal Chemical), and Perbunan® (Mobay).
	Polyurethane / Urethane		Polyurethane (PUR) resins provide excellent flexibility, impact resistance and durability. Polyurethanes are formed through the reaction of an isocyanate component with polyols or other active hydroxyl group compounds. Polyurethanes require a catalyst, heat or air evaporation to initiate and complete curing.
	Silicone / Liquid Silicone		Silicone rubber is a two-component, synthetic, flexible, rubber-like material made from silicone elastomers that can be cured at room temperature into a solid elastomer used in molding. It is heat resistant, durable and free of allergens or leachable chemicals. Liquid silicone is similar to normal silicone, but has different processing characteristics. It is purchased as a two-part raw material with a grease-like viscosity.
	Styrene Butadiene Rubber (SBR)		Styrene butadiene rubber (SBR) offers good resistance to petroleum hydrocarbons and fuels. It is widely used with most oils, hydraulic fluids, and alcohol. Many compound variations are available for specific applications. The range of suggested operating temperatures is -30° to 275° F.
	TPE / TPR		Thermoplastic rubber (TPR) and thermoplastic elastomers (TPE)--a class of polymers that have the performance of thermoset rubbers but are processed like plastic.
	Other		Other, unlisted rubber material.
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Services


	Services Offered:
	Your choices are...
	Clean Room Molding		Clean room molding describes a molding process that takes place within a certified cleanroom.
	Insert Molding		Supplier capable of producing parts that require molded in inserts, typically metallic.
	Large Part Molding		Supplier has capabilities to mold large parts.
	Micro Molding		Micro molding serves a variety of industries including medical, automotive, and consumer electronics by utilizing specialty miniature molding machines to produce very small (typically <2 grams) parts.
	Tool / Mold Making		Suppliers have in-house expertise and a tool shop to create molding/tooling necessary for production.
	Prototype / Market Entry Molding		Supplier can create prototypes to lend substance to ideas or investigate true manufacturing costs.
	Low Volume Production (Short Runs)		Supplier is capable of performing low volume production runs; typically means a production run time of less than one week.
	High Volume Production (Long Runs)		Supplier is capable of performing high volume production runs; typically means a production run time of over one week.
	Assembly Services		Supplier provides secondary operations and assembly services such as electro-mechanical assemblies, ultrasonic and heat welding, printing, painting, bonding, and machining.
	Bonding		Supplier has capabilities to bond the molded material to metals, wood, plastics or other substrates.
	Design Assistance		With design assistance, suppliers can assist with concepts, manufacturing costs, manufacturing techniques and material considerations. Suppliers may also be able to assist in upgrading or redesigning, re-evaluating or modernizing existing products to increase performance and/or reduce manufacturing costs. Some suppliers offer material sourcing and CAD modeling as well.
	Graphics		Supplier can mold-in or mold-on graphics, such as company logos, warning labels, and instructions. Mold-in graphics is a method of incorporating a decal into a molded part. The decal is applied to the mold surface and becomes integral to the molded component. Mold-on graphics can be applied after the part is molded.
	Just-In-Time Capability		Supplier has 'just-in-time' manufacturing capability of parts in order to reduce need for inventory maintenance.
	Machining		Machining is the removal of material through milling, turning, drilling, and other processes.
	Packaging / Shipping		Supplier provides packaging and shipping capabilities, including bulk shipment to facility for further processing or final packaging and shipping of product or device directly to the individual end customer.
	Other		Other, unlisted, or proprietary service.
	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.

Location



	Your choices are...
	North America		Companies are located in the United States, Canada or Mexico.
	United States Only		Companies are located in the United States.
	Northeast US Only		Companies are located in the Northeast United States, namely Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island and Vermont.
	Southern US Only		Companies are located in the Southern United States, namely Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, Missouri, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia, Washington D.C., and West Virginia.
	Southwest US Only		Companies are located in the Southwest United States, namely Arizona, California, Colorado, Nevada, New Mexico and Utah.
	Northwest US Only		Companies are located in the Northwest United States, namely Idaho, Montana, Oregon, Washington and Wyoming.
	Midwest US Only		Companies are located in the Midwest United States, namely Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Nebraska, North Dakota, Ohio, South Dakota and Wisconsin.
	Canada Only		Companies are located in Canada.
	South / Central America Only		Companies have facilities in South American countries such as Argentina, Brazil, or Chile; or in Central American countries such as Costa Rica, Honduras, Panama, etc.
	Europe Only		Companies are located in Europe, namely Germany, Ireland, Italy, United Kingdom, etc.
	South Asia Only		Companies are located in South Asia, namely India, Pakistan, Nepal, etc.
	Near East Only		Companies are located in the Near East, namely Egypt, Israel, Saudi Arabia, etc.
	East Asia / Pacific Only		Companies are located in East Asia, namely China, Japan, Taiwan, etc.
	Oceania Only		Companies are located in Australia, New Zealand, Papua New Guinea and a large group of South Pacific islands that include Micronesia, Polynesia, Guam, Fiji, Tonga, etc.
	Africa Only		Companies are located in sub-Saharan Africa.
	Other		Other unlisted country or region.
	Search Logic:		Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Rubber and Elastomer Molding Services Specifications

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