Bottles, PFA, FEP, and PTFE

Cap Liners, TFE

Check/ Foot Valves, TFE

Filters, Inline, Syringe, Capsule

Gas Sampling Bags

Gloves, Nitrile


Liquid Sampling Bags/Liners

Rods, TFE

Rupture Membranes, PFA

Sheets, TFE

Soil Sampling Syringes

Stirrer Magnets & Accessories

Surface Protector, Rolls

Transfer Cap Assemblies, PFA



* indicates required


PTFE resin is a polymer consisting of recurring tetrafluoroethylene monomer units with the formula: (CF2-CF2)n

The maximum molecular weight of this greater than 90?0 crystallinic TFE Polymer is about 9x106. PTFE displays a series of unique properties:

Nearly universal chemical resistance (exceptions: elemental fluorine, CF3, molten alkali metals) Insoluble in all solvents below 300癈 High service temperature stability up to 250癈 Very low adhesiveness Very low friction coefficient Extremely hydrophobic Physiologically inert, contaminant free Very good electrical (high resistance) and dielectrical (very low dielectric number and loss factor) properties Nonflammable Highly weather resistant (UV resistant) Good mechanical properties: tough elastic, easily manufactured

These advantages of PTFE, especially its universal chemical resistance, are the reason labware and accessories made of PTFE or other fluorocarbon resins are a must in any laboratory. Its broad service temperature range and its unbreakability are further advantages of PTFE.

Stirrer blades, magnetic stir bars encapsulated in PTFE, joint sleeves, adapters and boiling accessories are just a few of the items available in PTFE along with standard Labware items such as Flasks, Bottles, Beakers, etc. They are indispensable if the chemical resistance of glass or rare metals does not suffice. Digestion in boiling hydrofluoric acid or boron trifluoride is possible as well as hot alkali-hydroxide melts.

Labware made of PTFE resists temperatures of -200癈 without becoming brittle. The maximum service temperature is +250癈, (but 300癈 is possible) for a short time period. PTFE is extremely nonadhesive. This is an advantage for working with lacquers, adhesives, resins and hydroscopic substances. PTFE is biologically inert. Therefore it is used in many applications in biology, microbiology, medicine, pharmacy and in the food industry.

Pure PTFE, because of its chemical resistance and its antiadhesive surface, prevents any sample contamination by abrasion or etching. Vessels made of PTFE therefore are absolutely necessary in trace element analysis methods.

The production of PTFE-ware is performed using the so called isostatic pressing process. PTFE powder is filled in forms and isostatically pressed at high pressures. The pressed parts are sintered at temperatures up to 400癈. The characteristics of the material are substantially influenced by the pressing and sintering process. Porous PTFE is made by controlled sintering of powders with defined particle sizes. Stock PTFE in rods, sheets, etc. are available for customer use.

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