Our Stainless Steel Microvials have the same physical dimensions and weight as standard 2 ml polypropylene microvials. They can be sealed with either polyethylene flange caps, silicone rubber stopper caps¹ or crimped 13 mm OD septa caps.

Applications include:

• Dry grinding with steel beads in a high energy Bead mill cell disrupter (e.g.,MiniBeadbeater) where milling forces can crack common plastic microvials - - an exception is our 2 ml XXTuff polypropylene microvials.   They are the toughest 2 ml screw-top polypropylene vial on the market and can be used for most dry milling applications).
• Provides far superior heat transfer capabilities compared to plastic or glass vessels - as might be desired for some PCR methods and the control of sample heating during the beadbeating  process.

 ¹  NOTE:  When beadbeating dry or hard frozen samples using steel beads Silicone Rubber Caps, specially shaped to seal our s.s. microvials, should be used. Flange caps can fail under these milling conditions.  Scroll down for more information on Silicone Rubber Caps.