BioSpec XXTuff2™ reinforced microvials are designed to withstand the demanding conditions associated with dry grinding, bead beating, and high-impact tissue homogenization applications using dense grinding media such as stainless steel and chrome steel beads.

The XXTuff2 microvial maintains the same external dimensions as a standard 2 mL screw-cap microcentrifuge tube while incorporating reinforced structural regions in critical stress areas for significantly improved durability during laboratory homogenization workflows.

Testing demonstrates that the XXTuff2 vial is more than 10 times more durable than standard polypropylene microvials under demanding grinding conditions.

The updated XXTuff2 design improves upon earlier reinforced microvials by incorporating a skirted, free-standing bottom structure that helps reduce bottom blow-outs that may occur during certain dry grinding protocols. The vial also features a natural-colored screw cap for easy laboratory identification.

XXTuff2 reinforced microvials are autoclavable and certified DNase-free and RNase-free, making them suitable for molecular biology, genomics, RNA isolation, DNA extraction, and sensitive laboratory sample preparation applications.

Important: For CryoGrinding applications performed at liquid nitrogen temperatures, BioSpec stainless steel microvials are also recommended for maximum durability under extreme cryogenic grinding conditions.