Quickfit has introduced a PTFE seal for use with its range of interchangeable flat flange jointed glassware for laboratory applications.
The PTFE seals are available in 75mm and 100mm bore sizes and are made from a chemically inert, contaminant resistant polymer that is already used in laboratories.
PTFE seals are said to be a good alternative to vacuum greases, which can contaminate a reaction, consequently affecting purity and yields.
This, in turn, raises costs as more chemicals are needed to repeat experiments.
The Quickfit PTFE seal provides a 'perfect' air- and liquid-tight seal.
This is achieved by positioning the seals between two flat flanges and securing the flanges together with a fastening clip.