Rob Pruyn
What are the advantages, disadvantages and differences between rubber injection molding, transfer molding, and compression molding? This article explains.
Rubber-to-plastic bonded assemblies consist of an elastomer that is molded and chemically bonded to a prepared plastic surface using a specialized adhesive.
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.…
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…
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…
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.…
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…
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 –…
Company Background: The year was 1986 when George and Chuck Humphreys started The Rubber Group in Belleville, New Jersey as a distributor of molded rubber products. Then in 1991 the owners decided to move the company and its 5 employees to a less densely populated state, one where they felt had a better quality of…
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…