Rubber-to-Metal Bonded Assemblies

Rubber-to-Metal Bonded Assemblies: Design and Manufacturing Considerations

Rob Pruyn Industrial, Molding Services, Transportation

Rubber-to-metal bonded assemblies consist of an elastomer that is molded and chemically bonded to a clean metal surface using a specialized adhesive. During the injection, transfer, or compression molding process, rubber vulcanization and adhesive curing occur at the same time. Applications include small vibration mounts and massive railcar suspension components that weigh over 200 lbs. Chemical bonds can be strong, …

COVID-19 | Ventilator Products

Ventilator Products from The Rubber Group Help Fight COVID-19

Rob Pruyn Medical Devices, Molding Services

The Rubber Group is making parts for ventilators, life-saving medical devices that are in high demand during the COVID-19 pandemic. The Rochester, New Hampshire company is manufacturing both new and existing products while leveraging its custom rubber molding, rubber-to-metal bonding, and die cutting capabilities. The Rubber Group is also producing complex molds rapidly and making production tooling as quickly as …

New Injection Molding Press

The Rubber Group Adds Injection Molding Press for Larger Parts

Rob Pruyn Molding Services

The Rubber Group is using a new DESMA 968.400 ZO Benchmark (S2) rubber injection molding machine to produce larger parts such as insulators for power transformers. The rubber molder ordered the vertical injection molding press in the fall of 2019 and is already using it to produce large electrical insulators that separate conductors and prevent the passage of current. DESMA, …

Best Places to Work 2019

RPN Names The Rubber Group a Best Place to Work

Rob Pruyn Other

Rubber & Plastics News (RPN), a leading trade publication for the rubber and plastics industry, has named The Rubber Group to its Best Places to Work List for 2019. The Rochester, New Hampshire manufacturer  earned this award based on responses from its own employees to a survey conducted by Best Companies Group, an independent third-party. Founded in 1986, The Rubber …

Maintenance Technician

Maintenance Technician

Rob Pruyn Other

The Rubber Group is seeking to hire a Maintenance Technician. *** $500 signing bonus after 90 days *** Do you want to make a difference every day at your job? We are looking for a self motivated person to join our team and make us better. We are a local custom rubber molding that is seeking a skilled and talented …

Durometer vs. Modulus

Durometer vs. Modulus for Rubber Products

Rob Pruyn Other

Durometer is a measure of a rubber’s resistance to indentation. More commonly, however, it’s known as a measure of hardness. Modulus, another material property, is the stress or force that’s required to produce a strain. Higher-durometer rubber usually has a higher modulus, but that doesn’t mean the relationship between durometer and modulus is straightforward – especially in terms of stiffness. …

FTIR Spectrometer

FTIR Spectrometer with Microscope Identifies Materials, Solves Challenges

Rob Pruyn Products and Services

The Rubber Group is announcing its acquisition of an FTIR spectrometer and microscope that the rubber molding company will use to identify compounds and analyze specific areas of interest. FTIR, an acronym for Fourier-transform infrared spectroscopy, supports the reverse engineering of rubber materials where the elastomer is unknown. FTIR spectroscopy and microscopy applications include the verification of rubber compounds and …

The Rubber Group Reduces Lead Times by Increasing Low-Tonnage Capacity for Injection Molded Products

Rob Pruyn Products and Services

The Rubber Group is announcing its acquisition of an injection molding machine that will reduce lead times by increasing capacity for products that require lower-tonnage injection. The new equipment, a REP G10 vertical injection molding machine, will also increase process control for precision products while supporting material and color changeovers that are both faster and cheaper. Additional benefits include energy …