Why Choose Lab-Tag™?

  • FDA approved for FDA 21 CFR 175.105 indirect food contact. Can be used in food industry for identifying containers for freezer storage.
  • Made from plastic materials, they are designed to withstand long-term storage in liquid phase and vapor phase liquid nitrogen (-196ºC), and freezers (-120ºC, -80ºC and -20ºC).
  • Waterproof, weatherproof and wear and tear proof, they resist multiple freeze-thaw cycles and are ideal for dry-ice transportation. They can also withstand boiling water (+100ºC for 5 minutes) and gamma irradiation (50KGy tested).

Lab-TAG™ Cryo Color Dots are ideal for sticking on textured caps due to their specially designed adhesive for cold and rough surfaces. More precisely, they are ideal for labeling tops and caps, plastic bags and racks, freezer boxes and other containers. Cryo Color Rectangles stickers, on the other hand, can be used for labeling the sides of the tubes and vials, as well as other containers.

How They Work


Dots are available with diameter between 0.25” to 1”. The smallest circle label (0.25” diameter) can be used for identification of PCR tube tops. Larger sizes of circle (0.44” or 0.5” diameter) can be used for labeling microtube tops and cryogenic vial caps. Finally, the 0.75” and 1” diameter dots are ideal for 15ml and 50 ml Falcon tubes.

Dots and Rectangles are supplied in small sheet format (4” x 6” Hagaki sheet size) and in roll format. They are available in 15 colors and in packs of assorted colors. They can be written on using permanent markers such as our cryomarkers. Using special software, PCR tube cap labels can also be printed. Multicolor round labels containing up to 7 colors on the same sheet or roll are in stock.

Round cryogenic labels are also available for barcode printers.

  • Testimonial

    “Our labels have been in use for over a month now and they have not faded. They are still legible and scannable after being consistently exposed to 300⁰F temperatures and cleaned with rubbing alcohol. Good job LabTAG, this is a great product and we will keep ordering from you.”

    Ryan R.
  • Testimonial

    “LabTAG really values their customers. Their staff was dedicated to helping me figure out exactly what I needed, and even though I wasn’t able to act on the quote they supplied me with months earlier, they still honored it—not something most companies would do. I look forward to continuing to work with them.”

    Kyle R.
  • Testimonial

    “Your labels are the best I have ever used. They stick in liquid nitrogen, they are alcohol resistant, they don’t peel off, and, even at -80⁰C, you have to work to remove them.”

    Lucas B.