Septa for titrators are made of fluorosiloxane rubber. The main difference between this material and traditional silicone is the presence of trifluoropropyl groups in the chain, which give fluorosiloxane rubber chemical resistance to solvents, fuels, oils, acids, alkalis, and a number of oxidants, as well as a wide operating temperature range from -60 to +200℃.
Characteristics of the septa produced by us for the L 51108740 titrator:
Diameter -12 mm
Thickness - 2 mm
Color - white
Density -1.50 ± 0.05 g/cm3
Hardness -60- 70 units. Shore A