Aldrich Sleeve Stopper Septa. Fluoroelastomer Fkm. Bottom I.D. X O.D. 4.2 Mm X 10.7 Mm . Black. Fits 10/30 Joints

Not available outside of the UK & Ireland.

General description

These septa are made from fluoroelastomer FKM which is highly resistant to a broad range of solvents.An elastomeric study done at Sigma-Aldrich compared the solvent compatibility (resistance) of FKM and EPDM rubber, Fig. 1. A Sealability Factor was determined for each elastomer. Septa materials with lower sealability factor values, such as the Fluoroelastomer FKM, correlate with better solvent compatibility.

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