Industrial Seal Technology in Eastern Iowa

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For over 40 years, Master Packing & Rubber Co. (MPRC) has provided high-quality sealing solutions for diverse industrial applications throughout Eastern Iowa and beyond. Serving Eastern Iowa Customers with Industrial Sealing Solutions At our headquarters in Cedar Rapids, our experienced engineering team develops custom seals, gaskets, and O-rings that stand up to the most challenging […]

Graphite and Its Unique Characteristics

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At first glance, pencils, car brakes, and dry cell batteries (e.g., AA, etc.) may not seem to have much in common; however, they all include a common ingredient: graphite. This mineral is found in metamorphic and igneous rock and is a naturally occurring form of crystalline carbon. It has many properties that make it suitable […]

Elastomeric Gasket Types

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Consisting of various compressible elastomeric materials, these gaskets are rugged components capable of creating a tight seal between two mating surfaces in high-pressure or -temperature systems. They reliably prevent liquid or gas leaks, making them suitable for a diverse range of industries from automotive and aerospace to medical and food and beverage. Learn more about […]

Why Should You Choose Flex-Tex Expanded PTFE Instead of PTFE?

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Expanded polytetrafluoroethylene (ePTFE) is a type of PTFE that offers flexibility, permeability, chemical resistance, and linear strength. It has widespread applications, in everything from the medical, pharmaceutical, and dental industries to aerospace and telecommunications. While it shares some properties with conventional PTFE, its unique structure makes ePTFE a preferred material for various applications. In this […]

What Are O-Rings? All You Need to Know

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What is an O-ring, and what purposes do various O-rings serve? While an O-ring’s basic function is relatively simple, there are several important considerations to make when choosing the right one for your application to ensure your O-ring can withstand high pressures, temperatures, and other operating conditions. Read on to learn more about O-rings, what […]

Exhaust Gasket Material: Types and Applications

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Click to Expand Exhaust systems are exposed to extreme levels of heat, which means their gaskets must have the properties to withstand this and other harsh conditions. Learn about the characteristics to look for in exhaust gasket materials so that you can select the right types of gaskets for your exhaust system. Ideal Characteristics of […]

Cut Gaskets vs. Molded Gaskets: What Is the Difference?

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Cut Gaskets vs. Molded Gaskets: Which Sealing Option Is Right for You? Click to Expand Gaskets fill the gap between the surfaces of two parts, joining them and creating an effective seal that prevents leakage. Manufacturers have multiple methods for producing various types of high-quality gaskets, depending upon the material selection, available equipment, and application […]

Thinking “outside the box” to provide innovative sealing solutions: The fully-molded “Ladder Gasket” from MPRC.

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Fully Molded Ladder Gasket: MPRC’s Innovative Answer to Sealing Challenges Master Packing & Rubber Company (MPRC) takes great pride in “thinking outside the box” to do whatever it takes to assist our customers, and we never shy away from challenging or problem applications that many suppliers turn down. One example of a solution we provided […]