The Low Tolerance Spec

The United Seal & Rubber Co. Blog

Virgil Alonso

Recent Posts

Nitrile Rubber Seals

Posted by Virgil Alonso on Thu, Aug 22, 2013 @ 10:08 AM

Nitrile, also referred to as Buna-N, rubber is one of many synthetic rubbers used to manufacture gaskets and seals. Nitrile rubber (also known as NBR) is a family of unsaturated copolymers of propenenitrile and certain butadiene monomers. Nitrile rubbers generally have good resistance to oil, fuel, diluted acids, alkalines and many other types of chemicals. A general rule of thumb is the more nitrile within a polymer, the higher its oil resistance.   However the tradeoff will be a lower amount of flexibility.

Read More

Topics: Specification Tips

Methods for Making a Custom Gasket Design

Posted by Virgil Alonso on Tue, Aug 20, 2013 @ 10:08 AM

Injection molding is one of mainstream manufacturing forms of making a gasket or seals, but what are the other unsung heroes are not as well known? Most people might not know that several other process exist to create gaskets or seals other than injection molding. These include, but not limited to extrusion, splicing - vulcanizing, lathe cuts and gasket die cutting. This article will walk you through each process and give you the advantages and disadvantages of each one.

Read More

Topics: Value Engineering

EPDM For Custom Gasket Material

Posted by Virgil Alonso on Thu, Aug 15, 2013 @ 10:08 AM

EPDM is a type of synthetic rubber, unabbreviated stands for “E” ethylene, “P” propylene, “D” diene, and “M” refers to its classification in ASTM standard. The M-class includes rubbers having saturated chain of polymethylene. EPDM rubber is very close to the actual rubber ethylene propylene.

Read More

Topics: Specification Tip

Electromagnetic and Radio Frequency Interference Shielding (EMI RFI)

Posted by Virgil Alonso on Tue, Aug 13, 2013 @ 10:08 AM
Read More

Topics: Specification Tips

Design Custom Made Gaskets Around Their Properties

Posted by Virgil Alonso on Wed, Aug 7, 2013 @ 10:08 AM

Designing a custom made gasket should be treated almost like an online dating profile. What qualities are you interested in the most for your product? What are the least important aspects that won’t affect the overall performance of your product? Selecting the right properties in your gasket design will ultimately lead to a material that is best suited for your project without hindering its operation. Trust me, if there were a gasket that excels in every category, there would not be a need for so many gaskets on the market and everyone would use this mystical all-purpose product for everything.

Read More

Topics: Quality of Design