Rubber to Metal Bonding/

Bonded Rubber

Bonded rubber is a natural or synthetic elastomeric substance that is permanently adhered to another hard material, usually metals like steel grades, aluminum and brass, although rubber is bonded to glass and plastic as well. The rubber is at first uncured, then injected or poured into a mold containing the metal substrate. The substances making up the rubber material must not bleed rapidly to the surface of the uncured stock.

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Da/Pro Rubber, Inc.
Broken Arrow, OK
918-258-9386
Da/Pro Rubber strives for world class customer service by offering complete in-house capabilities from assistance in designing, laboratory testing, construction, sub-assembly and even full quality assurance. For bonded rubber products, they will work closely with you to create the exact part you need for your application. They will also work hard to make sure the product cost-effective for you.
Timco Rubber Products, Inc.
Cleveland, OH
800-969-6242
At Timco Rubber their team of experts works closely with customers to understand their challenges so that they are able to provide them with just the right customized solution. They will help maximize engineering methods, product performance, quality and deliver requirements for even the most complicated applications. For all of your bonded rubber projects, call Timco Rubber.
Ebco® Inc.
Elgin, IL
847-531-9500
Ebco is a global company capable of distribution from multiple locations throughout the United States, Europe and Asia. When it comes to bonded rubber, they are prepared to create and ship the perfect product for your application. Offering the highest quality products on the market today, they provide each customer with outstanding service and assist them in achieving their goals. Call today!
Gallagher Corporation
Gurnee, IL
800-373-8793
At the Gallagher Corporation, they focus on eight core strengths including quality, safety, cost containment, engineering, 99.6% uptime, machining, custom molding processing and customer service. They strive for these goals to make sure every customer receives only the best when it comes to their bonded rubber needs. For your next project, call the Gallagher Corporation.
Enterprise Rubber, Inc.
Akron, OH
888-361-7018
Enterprise Rubber has extensive experience in all types of rubber and can assist in product design as well as material selection and specification. They are the perfect company to turn to for all of your bonded rubber needs. With a wide array of standard and custom options, they have everything you have been searching for. For a quote on your next product be sure to contact Enterprise Rubber.
RD Rubber Technology Corporation
Santa Fe Springs, CA
562-941-4800
Since RD Rubber Technology Corporation began in 1986, they have engaged in the design, development and manufacturing of precision rubber components. The company still maintains the strict quality standards they were founded on to make sure that you only receive the best products. For bonded rubber, turn to a company you can depend on. Call or visit the RD Rubber website today.
Accurate Products, Inc.
Chicago, IL
800-782-7776
Accurate Products is the leading source for all your bonded rubber needs. With an objective to outperform their clients' expectations in terms of customer service, delivery, quality and pricing every single time, they are the perfect choice for your next project. For inquiries or quotes on your next task, contact Accurate Products. Their expert sales team is ready to start working with you.

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Industry Information

Bonded Rubber


Any type of rubber can be bonded to another harder material, including natural, pure rubber, neoprene, silicon, EPDM and nitrile. Each of these rubber compounds have unique benefits and qualities, including temperature resistance, water resistance, durability, ability to withstand high psi, continuous wear and contact with oil or chemicals. With each specific rubber offering unique capabilities, many manufacturers of rubber bonded to metal procedures offer custom design options so that the customer may get exactly what they want. Rubber effectively forms a water and air tight seal with metal with the use of an adhesive coating between the two. Types of adhesives that work well between metals and rubbers include industrial adhesives such as silicone and polyurethane. This forms many different products, usually for industrial rather than commercial use, including medical instruments, bearings, gears, plugs, washers, vibration dampeners, rubber lined tanks, building construction components, rubber-lined piping systems and many others.

There are three main components within the rubber to metal bonding process: the metal substrate, the rubber material and the adhesive agents that bond the two together. The process of forming the bonded product is simple, but depending on the type of metal and rubber used, could take over an hour to complete. The substrate must be thoroughly cleaned and degreased before the bonding can start. Then, it is coated with a primer and top coat of adhesives, either solvent or water based. Then the most important part of bonding, the molding process, takes place next. The rubber material is heated and injected or poured into the mold cavity that now contains the metal substrate. Once the mold is filled and the metal component is positioned perfectly, the rubber is given a chance to cure and is then removed from the mold when dry. Sometimes plated inserts are added into the mold to enhance strength and durability of the part. Bonded rubber and metal products are durable, long lasting and are bonded together to form an extremely strong seal. The bond is actually stronger than the elastomeric rubber itself, so if there is product failure, it lies in the rubber's inability to withstand pressure.