Seals Reference Materials

Description: Nitrite rubber (NBR) has been the work-horse elastomer in oil & gas production for the past fifty years. As wells began producing increasing amounts of hydrogen sulfide through stimulation or ...

Description: Designing O-ring seals for low pressures is not simply a matter of reducing the amount of squeeze: it involves a delicate balancing of material hardness, dimensional tolerances, stress relaxation, and ...

Description: The science and specs behind different types of polymers. ...

Description: An analysis of rubber under strain from an engineering perspective. ...

Description: Sealing high pressure gases with elastomers is a problem as elastomers are essentially a supercondensed gas. The primary interactions (type of gas, heat, pressure) and secondary interactions (water, ...

Description: Sealing successes and failures in the oil and gas industry. ...

Description: Overview, use of, and conclusions about durometers. ...

Description: The solubility parameter concept, on first discovery appears to offer a rationalized approach for a simplified elastomer selection in various solvents. The original definitive book, "Solubility of ...

Description: Hydrofluorocarbon elastomers, ASTM designation D1418-FKM, are produced domestically by Dupont and 3M Company under the trade names of Viton and Fluorel. FKM elastomers have been extensively studied, ...

Description: If a seal leaks for no apparent reason, or shows cracks and blisters, it could be reacting with the fluid it's sealing. This problem is especially severe if the fluid has a molecular structure similar ...

Description: Converting a high-volume compression-molded bonded seal to an injection-molded process requires dramatically different rheological and curing properties of the elastomer formulation. Shear rates are ...

Description: To more completely appreciate the challenges of successful oilfield elastomer formulation we will briefly review the operating environment. Energy production has moved from the relatively benign ...

Description: Fluoroelastomers are characterized by excellent heat stability, thus suitable for sealing applications where high temperature performance is required. However, thermal excursions, defined as ...

Description: This paper concern the theory and practice of vulcanization - the process of adding crosslinks to long-chain molecules. ...

Description: According to the National Association for Hose and Accessories Distribution (NAHAD), chemical compatibility describes the degree to which one material can contact another without an adverse change in ...

Description: Faulty or leaky door seals make it harder for refrigerators and freezers to keep contents cold. Motors work overtime, running continuously and increasing energy usage and wear. Increased costs aren't ...

Description: Selecting the best elastomer for an application involves being able to answer many questions. That may seem overwhelming at first but the best place to begin is with existing information. Look for a ...

Description: When JCB, the global manufacturer of construction machines, identified a need for a steep improvement in the performance of their hydraulic cylinder sealing systems, ...

Description: Use these tables below to work out which materials best suit your specific system and operating environment. ...

Description: When the medical industry chooses a sealing supplier, buyers want to work with solutions providers instead of salespeople. By selecting a partner instead of a provider, medical device manufacturers ...

Description: Simriz® is a family of Perfluoroelastor compounds developed solely by Simrit and designed to provide superior chemical resistance and thermal stability. Simriz possesses the resilience of an ...

Description: Regardless of its construction, a shield will be only as immune to induced noise as its effectiveness provides. This means that the shield will "intercept" and/or deflect magnetic or electrical fields ...

Description: Most polymeric items including vulcanized rubber and other elastomers tend to change their properties during storage and may become unserviceable. This may be due to hardening, softening, cracking, ...

Description: Many parameters can be used to describe surface finishes and these are explained in ISO 4287 and ISO 4288. Those in most common use in the fluid power industry include: Ra, which is defined as the ...

Description: It used to be that automotive companies took ownership for all aspects of the finished vehicle... scores of engineers worked on the improvements and innovation that put American automotive companies ...

Description: High end electronics pose a number of challenges that conventional seal applications do not. While most conventional seal applications focus on media compatibility, physical properties, and longevity, ...

Description: An O-ring is a round elastomeric ring. O-rings are ideally suited to be a compressed, static seal between non moving parts. O-rings can be used as a face seal on a valve, and used on rotating shafts. ...

Description: Improper seal installation is one of the leading causes of subsequent seal failure. However by following a few key steps this leading cause of seal failure can be dramatically reduced. ...

Description: The best way to interchange a mechanical seal is by using the OEM part number. Of course this information is not always available so here are 9 steps to help identify the seal. ...

Description: For a long time, rubber or plastic plugs were typically used to protect ABS and ESP systems from in-process contamination before final assembly. This was a complex proposition. For automotive supplier ...

Description: Color is an absolute must for some projects to be successful. Lauren offers EPDMs and other compounds in colors other than black. Our complete line of silicone capabilities allows Lauren to be ...

Description: Selecting the right seal or gasket for a specific application involves knowing the answers to many questions about what your requirements might be. To help you in this process, the following tables ...

Description: With thirty-five years of seal and gasket design experience, Lauren knows what you want. Vertically integrated from the ground up, we have tight control of our own materials and formulate high-quality ...

Description: In most instances, the use of pressure sensitive adhesives can eliminate mechanical fastening systems, (staples, nails or retaining clips) and the inherent problems associated with them. PSA's ...

Description: Fire resistant gasket for underground and transit applications ...