Introduction to Butyl Rubber Butyl rubber is a synthetic rubber, also known as polyisobutylene, which is produced by polymerizing isobutylene, a type of olefin. It has a very low gas permeability, making it an excellent material for manufacturing products that need to maintain airtight seals. Butyl rubber is also resistant to moisture, chemicals, […]
EPDM Rubber Introduction EPDM rubber, also known as Ethylene Propylene Diene Monomer rubber, is a type of synthetic rubber that is commonly used in various applications due to its excellent resistance to weathering, ozone, UV, and heat. It is a type of elastomer that is made by polymerizing ethylene and propylene with a diene […]
The Cryogenic Deflashing Process Cryogenic Deflashing is a process designed to remove molding flash created during the molding process. Molding flash can be found on molded parts along the parting lines, gate vestiges, and where pins and slides are located. In order for molded parts to complete their desired function, the residual molding flash needs […]
Rubber deflashing is the process of removing excess material called flash, or flashing, from the surfaces of molded rubber parts. The causes of flash are numerous and include parting line mismatches, improper venting, inadequate clamping pressure, poor sprue bushing support, and excessively low viscosity. No matter what the cause, old or worn tooling is often […]
What’s the difference between dry ice deflashing vs. cryogenic deflashing? Both are used to remove mold flash from plastic or rubber parts. Dry ice deflashing uses compressed air to propel a stream of solid carbon dioxide (dry ice) particles that blast away surface defects. Cryogenic deflashing uses gaseous nitrogen to freeze parts so that mold […]
