Rubber to Metal Bonding Services | Qualiform Rubber Molding

Over Molding and Insert Molding

For the rubber the metal bonding process, injection and transfer molding are by far the most effective molding processes. The process we use depends on the intended use of the final component. Rubber to metal bonding is perfect for bonding rubber to both metal and plastic. Gears, shafts, rollers, bumpers and stops are all typically made with rubber to metal bonding. Additionally, this process can bond rubber components to aluminum, brass, plastic and steel.

In addition to our superior product quality, Qualiform employs a knowledgeable technical staff for assisting OEM design engineers with product design and the selection of the proper rubber compounds.  We can offer recommendations in relation to the performance requirements and application of your desired component. Our central goal is to provide superior products with uniformity and unmatched quality while maintaining maximum efficiency. As a result, we can offer custom rubber to metal bonding solutions to meet virtually any customer’s specifications.

Two-Step Rubber to Metal Bonding

Here at Qualiform, we utilize a two-step process for preparing the metal parts prior to bonding. The first step is removing any grease and contaminants from the components. This step in the process is not unlike preparation for industrial coatings or painting. We then coat the component in a heat-activated adhesive, once cleaning is complete.

The part is now ready for over molding, so we insert it into a mold cavity. If we need to mold a specific area of the part, we utilize magnets to suspend the component. However, complete rubber encapsulation requires the use of chaplet pins for part suspension. We then close the mold and begin the molding process, once the component is in place. The high temperatures within the mold cavity cure the rubber while also activating the adhesive. As a result, a mechanical bond forms between the rubber and the metal component. Learn more about our processes by clicking the following links: rubber injection molding process or transfer molding process.

Encapsulating with Rubber to Metal Bonding

When taking on projects that require complete encapsulation of a metal part, we employ rubber insert molding methods. This method is a slight variation on the typical rubber to metal bonding process. This process requires the suspension of the existing component within the mold cavity, so we can precisely form the bond between the part and the rubber materials. However, this process is still capable of molding to specific areas of the component. Regardless, bonding your metal part to rubber is the most effective process for improving stability. Rubber’s flexible characteristics function as an upgrade to the existing component.

The rubber to metal bonding process can all enhance parts with valuable properties such as the ability to meet NEMA standards, conduct electricity, create environmental seals, isolate noise and vibration, and resist wear, chemicals and corrosion.

Insert molding for specific areas of a component is applicable for these materials: steel, brass, aluminum, alloys, and exotics as well as engineered resins and plastics.

Qualiform Molding Materials

Qualiform molds both natural rubber and synthetic rubber materials:

  • Butyl
  • Colored Compounds
  • EPDM
  • Natural Rubber
  • Neoprene
  • Nitrile
  • SBR
  • Viton™
  • Fiber Molding

Commonly Asked Questions | Rubber to Metal Bonding

Qualiform provides the most reliable customer service in regard metal to rubber bonding and rubber molding services. We always follow up with our clients, so we can explain each manufacturing process in-depth. With a variety of difference services, we want our customers to know they are using the best process for their application. For additional questions, please contact our technical staff! Check out the answers to some of the most common questions we receive below:

How do I get a quote?

Simply give us a sample or print of your desired component, so we can review it and determine the ideal process. Also, please include the estimate of your yearly usage requirements. This greatly assists us with tooling design. When possible, also include the type of material you prefer. If you are unsure of the materials you need, describe the environmental conditions in which this component will be used to our support technicians.

Can Qualiform help with designing my custom rubber part?

Qualiform will work by your side from the beginning of the design process to the final stages of manufacturing if you request it.

What if I don’t know which material is best for my application?

Our team of rubber molding experts can provide you with recommendations for polymers as well as determining your durometer requirements.

What is the average lead-time for placing an order that requires tooling?

The average lead times depend on the type of tooling:

  • Prototyping: 2-4 Weeks
  • Transfer or Compression Molding: 6-8 Weeks
  • Rubber Injection Molding: 8-10 Weeks

However, if you need an expedited tooling lead time, we are able to work with our tooling shop to meet your time requirements.

Does Qualiform tooling manufactured in the U.S.?

We purchase all tooling in the United States, so we can respond more quickly to customer requests and offer quicker lead-times.

What is Qualiform’s component lead-time?

We can ship the majority of our rubber components within 3-4 weeks from the receipt of the order. This also depends on the number of products.

Can Qualiform use existing tooling?

In most cases, existing tooling will fit our presses. However, there are cases in which we must make small tooling modifications.

Who owns the tooling once I pay for the rubber molding tooling?

Once we receive payment for your component, the tooling is your property. We customize tooling to each customer’s unique specifications.

Can Qualiform source my metal components for rubber to metal bonding applications?

We have a diverse network of supply chains for sourcing the necessary metal stamps and inserts.

Can Qualiform match my custom color requirements?

We will work with our rubber resources to produce a color that fits your requirements.

If you are looking for rubber to metal bonding services or other rubber molding services, contact us today!

Rubber to Metal Bonding
Our technical staff is ready to assist you with all your custom rubber molding needs.
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