In 2008, we started a test on some O-rings and grommets designed and formulated in our Yellow Viton "B" compound. We wanted to know how they would hold up to the Bio-Diesel, so we placed them in a jar of Bio-Fuel we acquired from a local customer. As is sometimes the case- we kind of forgot about it. On 3/24/22, we pulled each item out of the jar of Bio-Diesel to examine them and measure for dimensional and hardness tolerances. MPRC is pleased to say that after 14 years, they look incredible and all items are within spec. In fact, you can read the raised and embossed "MPRC" on the molded rings perfectly! We love little science experiments like this, and it's what helps make MPRC your fluid sealing specialist.

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