These pre-cut peel-off labels, ideal for labeling 0.2ml PCR tubes, are chemically inert polyester labels that strongly adhere to all plastics and other materials. They are temperature resistant from –40°C to 121°C. These labels will withstand autoclaving, boiling water baths, freezer temperatures, organic solvents, caustic agents and other challenges without peeling, cracking or falling off. For best adhesion it is recommended that siliconized surfaces be avoided.

Tough-Spots will accept any marking instrument. Just write or print from a laser printer, peel back the label and affix to the top or side of a microtube or cryovial.