Polymer Viscosity Experts
PSL Rheotek polymer viscometers are used and trusted by major resin manufacturers, compounders and recyclers all over the world. Test results from PSL Rheotek polymer viscometers are an essential part of ongoing QC on product stream in the manufacture of PET, Polyamide, PP, PVC, Pulp, Cellulose and a number of pharmaceutical products.
Hailing from rural Essex in the market town of Burnham-on-Crouch, the manufacturers, Poulten Selfe & Lee Limited, has been working in this field just over 20 years. In the market niche of method compliant solution viscosity, the PSL Rheotek brand name is well known from South Africa to Finland, from Brazil to Indonesia, and most of all, in the United States.
All instruments are configured for testing in strict compliance with international test methods, such as ISO 1628 or ASTM D2857.
At the heart of each automated viscometer is a mouth blown precision glass capillary viscometer. It is manufactured from low thermal expansion borosilicate glass tubing by the master glassblowers at Poulten Selfe & Lee Limited.
Each tube is supplied with a unique certificate of calibration from the on-site calibration laboraotory. All certificates are issued under the ISO 17025 accreditation held by the laboratory.