Lab News

We are often asked if our lab bottles or screw cap test tubes are "air-tight". For these items to be air-tight they require a perfect seal around the top of the bottle or tube and the screw cap lid. Often the pouring ring or lid disc will do this, however we would still only consider the bottles or tubes as leak-proof rather than air-tight.A simple solution to creating an air-tight bottle or tube would be to seal the top with PARAFILM and then screw the lid down over the PARAFILM.PARAFILM i …

Parafilm is a versatile, moisture-resistant, thermoplastic flexible plastic used in a wide variety of clinical and industrial applications, Parafilm has been used with confidence for years in scientific research and laboratory settings.It is a proven fast, economical covering or stopper for test tubes, beakers, vials, petri dishes, flasks and various instruments and objects with irregular surfaces.It is an ideal shelf or tray liner to prevent slipping of bottles or instruments. It is odorless an …