Polymer Rich = quality to the highest degree
Polymer Rich = performance beyond expectations
Polymer Rich = integrity built into every part

Polymer rich compounds are the reason some compounds perform brilliantly and polymer poor compounds fail in the same service application.
Parts made offshore are notorious for being polymer poor, the reason for their failure and cheap price. As well, when compounds are polymer poor they are loaded with clay and carbon black fillers. This also results in a tremendously high TOC content. This is not to say the polymer poor compounds do not have a place where they can be used. However, sanitary process piping gaskets and "O"-rings for the Dairy, Food, Beverage and Pharmaceutical processing industry is not one of them because of FDA requirements and the harsh service of CIP systems.

Post Cure: The second step in the vulcanization (manufacturing) process for high-end elastomer parts. This provides stabilization of the parts and drives off the volatiles and the remaining curing agents resulting from the vulcanization process. As well, the molecules in the part are tightened, making for greater resistance to compression set, greater tensile, and modulus, increasing the performance of the part by as much as 50%, depending on the application.

Newman's elastomer compounds are the most Polymer Rich of all FDA & US Pharmacopoeia compliant compounds, that exist in the industry today, regardless of the part or the manufacturer. It's no wonder that Newman is the leader in sanitary process piping gaskets worldwide!

Newman Sanitary Gasket Company has produced a very informative publication explaining all the details of the Polymer Rich compounds. Just double click on the literature graphic above to open a PDF in Adobe Acrobat Reader.


Test results comparison between primary competitor and Newman Sanitary Gasket Company
Chemical Testing (EPDM)
Extraction Testing (EPDM)
TOC Comparison Test (EPDM)
Physical Properties Test (EPDM)
ARDL Extraction Comparison Test (Viton®)
A word of explanation on the extractable for
the green competitor
It is illustrated in this bar chart that the green competitor extractables are lower than Newman's. The extractables from elastomers are primarily the plasticizers (oil) that is used in the compound to give the base polymer softness and pliability. Carbon black has natural oil in it that accomplishes the same end result. The green competitor has 41.5% carbon black added to the base polymer reducing the necessity to add the plasticizer. However, in compliance with the Federal Code of Regulations, Title 21 paragraph 177.2600, no more than 10% carbon black is allowable and still meet the standards of the FDA for all applications.

The payoff for Newman's EPDM compound, not exceeding the greater than 10% carbon black, is illustrated in the bar chart that shows the Total Organic Carbon (TOC). Is is very questionable whether a process engineer in a pharmaceutical plant would allow gaskets or any other elastomer parts with a TOC of 82.95 to be used in their processing system.

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