Corry Rubber Corporation — US custom rubber molding with an ISO/IEC 17025:2017 accredited laboratory
Corry Rubber Corporation has manufactured custom elastomeric parts in Corry, Pennsylvania since August 15, 1961. We mold, mix, bond, and test rubber components on a single 142,000 square foot US campus, and we run our own ISO/IEC 17025:2017 accredited testing laboratory inside the plant that makes the parts. Sizes run from under one gram to 70 pounds, at roughly 5.5 million pieces per month. Certifications: ISO/IEC 17025:2017, IATF 16949:2016, ISO 9001:2015, ISO 14001:2015, with AS9100D in process.
601 West Main Street, Corry, PA 16407 · 814-664-2313 · Contact us · Monday to Friday, 8:00 to 5:00
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Flight-critical elastomer parts stand or fall on material pedigree. CRC molds the rod ends, spherical bearings, and bonded assemblies that go into flight-control and actuation systems, in compounds mixed in-house and verified lot by lot in our ISO/IEC 17025 accredited lab, so the paperwork is as airworthy as the part.
Trucks, buses, construction, agricultural, and material-handling machines all punish rubber the same way: oil, ozone, heat, grit, shock, and continuous load. We compound for that duty and mold the mounts, dampers, bushings, and seals that keep the machine working instead of sitting in the shop.
Defense work lives or dies on qualification. We formulate to the specification in-house, run the qualification testing in our own ISO/IEC 17025:2017 accredited lab, and mold the bonded and sealing parts on the same site, so material pedigree, lot traceability, and the data behind a first-article package all come from one supplier with one set of records.
Power generation, oil & gas, and renewables expose elastomers to aggressive fluids, wide temperature swings, and sustained pressure. We develop a compound for the specific duty, prove it in the lab, then mold it to the sealing and fluid-separation geometry your equipment needs.
Food and beverage lines demand parts that pass contact and sanitation requirements and still survive daily wash-down and temperature cycling. We mold in FDA- and NSF-oriented compounds built for clean-in-place duty and consistent, documented lot quality.
For industrial OEMs we supply the molded elastomer content across a whole machine, vibration control, sealing, wear, and motion, each part matched in compound and geometry to its job so the equipment performs and stays serviceable in the field.
Salt, water, ozone, and UV degrade ordinary rubber quickly. We formulate marine-grade compounds and mold the seals and mounts that keep water out and vibration down through a long service life on and around the water.
Few environments are harder on rubber than mining. We engineer abrasion- and impact-resistant compounds and bonded structural parts that survive continuous load underground and on the surface, extending service life where every hour of downtime is expensive.
Waterworks parts have to hold pressure and stay safe to drink. Our NSF 61-oriented compounds are developed and lab-verified to resist chlorine, ozone, and years of immersion, then molded into the bladders, seals, and gaskets that keep systems running.
CRC has been a tier-1 molder to major North American vehicle OEMs for more than 50 years, running coil-spring insulators, grommets, bushings, and floor systems at production volume under IATF 16949 controls.
Tightening rail standards mean longer warranties and tougher fluid and fuel exposure. Corry has supplied track fasteners and isolation mounts to high-speed and heavy-freight systems worldwide for decades, engineering the durability and insulation those longer service lives demand.
Bring us a print, a discontinued part to reverse-engineer, or a performance problem to solve, and we develop the molded elastomer component to match, with date, batch, and part coding built in for full traceability.
The expansion-tank bladders that hold steady pressure across HVAC and hydronic equipment, compounded, mixed, and molded under one roof. The same bags now go into the temperature-management and cooling systems of AI datacenters.
The elastomeric isolation and vibration-control mounts, rubber-to-metal isolators, and couplings that manage motion and quiet noise inside appliances, designed alongside our chemical and mechanical engineers to perform in the most demanding environments.
The seals that keep sterilizer and washer-disinfector machines sealed and running, plus the silicone sheaths and metal-bonded components that flex through millions of cycles inside endoscopes and medical devices.
The molded seals, mounts, rings, bushings, balls, rollers, bumpers, and tubing that make consumer products run quietly and last longer, designed with our customers during development to cut component cost while improving performance.
Custom molded rubber sealing devices for static and dynamic applications, in a wide range of shapes, sizes, and elastomers, engineered for OEMs across the automotive, rail, HVAC, appliance, and medical industries.
Corry Rubber is a privately-held, 100% company-owned Pennsylvania corporation, founded by Ernest Ferro Sr. and in operation since August 15, 1961, when it started with three presses, one mill, and one 3″ extruder.
Our management team has over 100 years of combined rubber experience to serve you. We are committed to long-term partnerships with our associates, customers and community.
Corry Rubber Corporation is registered to the ISO 9001:2015, ISO 14001:2015, ISO 17025:2017 and IATF 16949:2016 quality standards.
Engineering assistance, quick turn-around and reduced part costs make Corry Rubber Corporation one of North America's top elastomer manufacturers.
Here's how a part goes from your idea to boxes on your dock, in plain language, with one team under one roof.
Join a US custom rubber molder in Corry, PA. We hire across the accredited lab, the molding floor, engineering, and the front office.
Technical papers and product literature from Corry Rubber Corporation.
The latest from Corry Rubber.
To meet customer application needs, Corry Rubber Corporation employs a structured process for elastomer selection and physical property definition.
Comparative properties to help designers and users make preliminary material choices.
Corry Rubber Corporation is one of North America's premier elastomer manufacturers, known for our technical expertise, prototyping capability, manufacturing versatility and quality assurance.
Corry Rubber Corporation product design engineers help our customers develop solutions for noise, vibration, shock, sealing, motion accommodation, and many other elastomer applications while achieving the best overall cost and meeting engineering performance criteria.
Corry Rubber Corporation prides itself in the ability to help customers with all facets of prototyping.
Corry Rubber molds elastomer parts by every major process, injection, injection-transfer, transfer, compression, and extrusion, all under one roof, so the method is matched to the part rather than the part to the method.
From laboratory to proprietary molding technologies, Corry Rubber Corporation has the ability to mold the ideal component for your needs.
Corry Rubber utilizes 142,000 square feet of production space and has the plant capacity to immediately handle your production needs.
Corry Rubber develops and mixes application-specific elastomer compounds in-house, formulated for your performance targets and verified in our ISO/IEC 17025:2017 accredited lab before production.
Every durable rubber-to-metal bond starts at the surface. Before a part is ever molded, Corry Rubber cleans, blasts, and primes each substrate in-house, giving the adhesive system a clean, active surface to grip so the finished bond ends up stronger than the rubber itself. A bond is only as strong as the surface beneath it. Our metal-prep process follows a controlled sequence, surface preparation, primer application, adhesive application, then molding, with each step documented so results repeat batch after batch.
Elastomeric mounts and isolators that decouple equipment from shock, vibration, and structure-borne noise, used under machinery, compressors, off-highway and material-handling equipment, vibratory and mining equipment, and sensitive electronics. Centerbond, machinery, harmonic, ring-and-bushing, low-profile, shear, leveling, and seismic mounts, durometer-rated and frequency-tuned to your load, size one with the calculator at the bottom of this page.
Corry Rubber Corporation is a highly technical problem solver and manufacturer of elastomeric products. We are well-known for our prototyping capabilities and manufacturing versatility, and we specialize in elastomeric composites that bond elastomers to other materials such as steel, aluminum, plastics and thermoplastic elastomers. We are committed to solving your elastomer and elastomer composite challenges, our word is our bond, and we would like to play an integral part in your company's future successes.
Molds designed in partnership with XDTMP, matched to the part and the process, plus low-risk transfer of existing tooling, including tooling at other domestic vendors overseas.
The replacement bladders and bags that hold the pressurized air-to-water boundary inside well, expansion, surge, and storage tanks, the part that keeps potable-water systems, hydronic heating loops, and pump systems holding steady pressure, including the closed-loop cooling systems that keep AI data centers running. Supplied to well- and expansion-tank OEMs in butyl and EPDM from a few gallons up to 15,000+ liters, including NSF 61 potable-water and high-temperature hydronic versions with their molded collars and tabs.
The sealing family for mechanical pipe couplings and waterworks, the wedge, armored, insulating, and end gaskets that seal (and, where required, electrically isolate) the bolted joints inside mechanical couplings, repair clamps, and insulating fittings across municipal water, gas-distribution, and industrial piping. Molded by grade and style number (styles 65, 90, 401, 711, and more) over the full IPS/CTS size range for coupling and pipe-repair manufacturers, together with the stop-changer plugs, seat pads, and mesh strainers that complete those repair and shut-off systems.
A complete line of elastomeric mounts and isolators that control shock, vibration, and structure-borne noise in machinery, material-handling, and mobile equipment. From machinery and low-profile equipment mounts, the kind that sit under forklifts, compressors, and industrial drives, to multi-plane “Diamond”-style harmonic mounts, ring-and-bushing mounts, shear and sandwich mounts, seismic isolators, and rubber spring mounts for vibrating screens, each is durometer-rated and tuned to the load and excitation frequency of the application.
Molded elastomeric springs and elastic members that store and return energy where steel springs can't, most visibly the tuned polyisoprene springs that amplify the trough stroke of the heavy-duty vibratory feeders and screeners built by processing-equipment makers, along with the drive couplings and isolator sets for vibratory processing lines and the dual-durometer auxiliary springs that add load capacity to truck suspensions. Engineered to a specific rate and travel: HVF, drive, torsion, canister, and shear-grader springs, elastic members, rebound cushions, and bonded elastic-member assemblies.
Molded suspension and chassis parts that control motion, isolate road noise, and protect body structures on cars, trucks, and commercial vehicles. Front and rear stabilizer-bar bushings and shaft insulators, control-arm and body-bolt cushion assemblies, shock-absorber grommets, and bodyside bumpers, produced at production volume to the durometer and dimensional specs of automotive and commercial-truck OEMs under IATF 16949 controls.
Precision motion joints that allow controlled angular movement in linkages and flight-control systems, rod ends, rod-end bearings, and spherical/pivot bearings with the elastomer element bonded to aluminum or stainless inserts. Supplied in right-hand, left-hand, silicone, and inner-shaft configurations for rod-end and bearing makers serving aerospace, defense, and demanding industrial motion control.
Engineered elastomeric track components that form the resilient layer between rail and structure, managing wheel load, impact, and vibration across freight, transit, and bridge rail. Direct-fixation track pads and fasteners (DF L-80, FA-series, LMTT), canted and non-canted egg pads, bonded transit fasteners, and guard-rail assemblies, molded to the fastening-system designs used by mainline and transit track suppliers.
Solid molded balls that bounce against the screen decks of industrial sifters and separators, knocking trapped particles loose so the mesh doesn't blind, the standard deck-cleaning ball for industrial vibratory screening machines. Molded in natural rubber, neoprene, EPDM, and FDA silicone across the common 1-1/8" to 2" sizes, in a full range of colors for material and line identification.
Pressure-actuated and static sealing parts molded in application-matched compounds, diaphragms that flex for millions of cycles in pumps, screeners, and expansion tanks; umbrella valves that meter flow in hydraulic and fluid systems; and the door, lid, and vent seals, plungers, choke seals, and O-rings used in sterilizer, rail, and fuel-system equipment. FDA- and regulatory-grade silicones and fluoroelastomers where the application demands them, for OEMs in process equipment, medical sterilization, and rail.
Tubular molded parts that connect, protect, and route, the flexible connector sleeves that span between vibrating screeners and fixed ductwork, the port liners that seal tank and vessel openings, molded hoses and air-duct boots, and protective bending sheaths. Produced in rubber, neoprene, EPDM, and FDA silicone for screening-equipment makers, hydronic and automotive OEMs, and fluid-handling systems.
Load-bearing and protective rubber blocks, slabs, and pads, outrigger and crane support blocks that spread heavy point loads under lifting and material-handling equipment, elastomer mounting blocks, custom-durometer slab and sheet stock (including reinforced grades), and shock and support pads. Cut and molded by material and durometer for construction and lifting equipment, machinery installation, and industrial protection.
Rubber-to-metal molded wheels and specialty parts built to print, rubber-coated and billet-anodized wheels for heavy-duty casters and material-handling equipment, solid rubber wheels and shock absorbers for defense ground-support equipment, weighted analog and record-weight discs for high-end audio, plus grips, primer bulbs, grommets, and other custom molded items. Bonded, balanced, and finished to OEM drawings.
Corry Rubber Corporation makes expansion tank bladders for potable water and heating applications as well as many other applications where pressure surges must be minimized and/or fluid delivery at constant pressure and volume are critical.
Corry Rubber Corporation specializes in custom solutions for rubber to metal bonding applications as well as numerous rubber overmolding applications.
An internationally benchmarked testing laboratory, operating inside the same facility that molds your parts. Most molders send testing out and wait. We run it in-house, to an accredited standard.
The formal boundary of what the laboratory is accredited to test, by method, property, and standard.
An index of the standardized methods the lab runs. Each method explains what it measures and why it matters.
Quantifying the physical, thermal, and chemical behavior of an elastomer compound.
Determining why a rubber part failed, and what to change so it doesn't happen again.
Developing and validating new elastomer formulations against a defined property window.
Supporting the testing and documentation needed for regulated applications.
If you're not a rubber engineer, this is the place to begin. No chemistry, no jargon, just plain explanations of what we make and how to work with us.
Four simple steps from your first message to finished parts on your dock. You can jump in at any stage, most people start with just a conversation.
Straight, plain-language answers to the questions we hear most often.
Bring your rubber parts home to one accountable US supplier and de-risk your supply chain in the process. Below: why it pays off, the tools to run the numbers, and how the move actually works.
Merchant rubber compound supply, we mix and sell compound to other manufacturers, not just for our own molding. Every batch is verifiable against spec in our accredited lab.
We make the parts that keep fluids, gases, and contaminants where they belong, O-rings, custom-profile seals, and molded gaskets. Material and geometry are chosen for the temperature, pressure, and media the seal will face.
We mold rubber directly over another part, a metal insert, a plastic housing, or a sub-assembly, to add grip, sealing, or protection in one step. This removes assembly operations and creates a single, integrated component.
An elastomer reference, the polymer families Corry molds and mixes, with the temperature range, hardness, strengths, and typical uses of each.
NBR (nitrile) is the standard oil-resistant rubber. It's the default choice for seals and gaskets that see petroleum oils and fuels, and it's economical, but it doesn't like sunlight, ozone, or high heat.
FKM (often called by the Viton™ trade name) is a premium high-performance rubber for heat, fuels, and aggressive chemicals. It's a go-to when an application is too hot or too harsh for nitrile.
EPDM is the outdoor and water rubber, superb against weather, ozone, steam, and hot water, plus many acids and bases. The one thing it won't tolerate is petroleum oil or fuel.
LSR is silicone supplied as a liquid and injection-molded with high precision, ideal for tiny, complex, or overmolded parts and for clean, high-volume medical production. It shares silicone's temperature range and biocompatibility.
Neoprene is the balanced all-rounder, moderate oil resistance, good weather and ozone resistance, and inherent flame resistance in one material. It rarely leads any category but rarely fails badly either.
Start from the problem you have rather than the process you think you need. Every capability and product page hangs from here: something leaks, something vibrates, rubber has to hold onto metal, a part has to survive a fluid or a temperature nothing off the shelf survives.
Rubber parts in plain language: grommets, bumpers and stops, gaskets, bushings, mounts and isolators, bladders, diaphragms and boots, rollers and coated metal. Each entry says what the part does, what we need from you to quote it, and the mistake buyers usually make on it.
Computer-controlled injection presses for high-volume molded rubber parts, including when the higher tooling cost pays for itself and when it does not. Tight repeatability, minimal flash, and short cycle times on the right part.
The process we reach for when metal inserts are involved, and the one behind most of our rubber-to-metal bonded work. Moderate tooling cost, good dimensional control, and the flow characteristics that let rubber pack around an insert.
The lowest tooling cost of the three molding processes, and the right answer for large parts, low volumes, and premium compounds where material waste matters more than cycle time.
Primer keys to the metal, the adhesive co-vulcanizes with the elastomer. How both are selected against substrate and polymer, why film thickness fails at both edges of its band, and the cure window that decides whether a bond holds.
R, RC, and CM: where a bonded part let go and what each surface tells you about the process behind it. Why a high failure load with bare metal showing is a worse result than a lower load that tore the rubber.
Methods A and B run in our ISO/IEC 17025 accredited lab. Both the failure load and the failure mode are reported, because a bond strength without a failure mode cannot tell you what to change.
The formal boundary of what our ISO/IEC 17025:2017 laboratory is accredited to test. Eighteen accredited methods, each with what the test physically does, why it matters, and what comes back on the report: ASTM D412 tensile, D395 compression set, D2240 durometer hardness, D624 tear, D573 heat aging, D471 fluid immersion, D1149 ozone, D429 rubber-to-metal adhesion, D297 chemical analysis, D5289 cure rheometry, D1646 Mooney viscosity, D2137 low-temperature brittleness, D1329 low-temperature retraction, D5963 abrasion, D2632 resilience, D1414 O-ring properties, D2000 line-callout verification, and D3767 conditioning and dimensional measurement.
Nitrile with the double bonds taken out of the backbone, which buys a large amount of heat, steam, and ozone resistance while keeping nitrile's oil resistance and cost structure. No fluorine in the polymer, which makes it the leading PFAS-free candidate to replace a fluoroelastomer in hot-wet service.
A fluoroelastomer built from tetrafluoroethylene and propylene rather than the vinylidene fluoride used in FKM, giving it resistance to steam, strong bases, and amines that FKM does not have. Contains fluorine, and falls inside current PFAS regulatory definitions.
What it changes to have an ISO/IEC 17025:2017 accredited elastomer laboratory inside the building that mixes the compound and molds the part: compound development loops measured in days instead of weeks, acceptance testing that characterises a legacy overseas part before it is quoted and again as parts arrive, and verification that rests on an audited method rather than a supplier's word. Also what the arrangement is not, since we are neither an independent testing house nor an analytical chemistry laboratory.
Where FKM, FFKM, and AFLAS stand against the PFAS restrictions now in progress, and what a non-fluorinated replacement gives up. We characterise the incumbent fluoroelastomer and candidate replacements to accredited methods, heat aging to ASTM D573, compression set to D395, and fluid immersion to D471 in your own media. HNBR, peroxide-cured EPDM, silicone, and epichlorohydrin are the four non-fluorinated candidates, and none of them is a drop-in.
Both seal hot oil, but only FKM runs continuously past 200 degrees Celsius and only HNBR survives hot water and steam. A comparison of service temperature, chemical resistance, compression set, low-temperature behaviour, cost, and PFAS status, with choose-when lists for each. HNBR contains no fluorine, which now decides some programmes on its own.
Viton is a trade name for FKM and Buna N is nitrile. On petroleum oil alone the two are close enough that price decides, and nitrile is the least expensive good oil resistance available. Temperature above 120 degrees Celsius, aromatic and chlorinated solvents, and ozone or sunlight exposure are the three things that move the answer to FKM.
AFLAS, designated FEPM, is the better material in steam, hot water, amines, and strong bases. FKM is the better material in fuels and aromatic solvents. AFLAS gives up low-temperature sealing, and both contain fluorine, so neither is an answer to a PFAS requirement.
A mixing enquiry that reaches a chemist rather than a general sales inbox, for companies buying merchant compound rather than molded parts.
How to pick a hardness for a rubber part, why a durometer that feels right by hand is usually wrong for the load, and what the Shore A and Shore D scales actually measure.