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FREQUENTLY ASKED QUESTONS
Q: What is the lowest
temperature at which Tough-Tags will perform?
A: Tough-Tags will work at
-40°C, provided you are using microcentrifuge tubes made of 100% pure virgin
polypropylene. They will work at -20°C regardless of the kind of tube they are
on. For anything below -80°C, we suggest Cryo-Babies and Cryo-Tags.
Q:
Will Tough-Tags fall off during certain procedures?
A: If tubes labeled
with Tough-Tags are placed into a boiling water bath immediately after being
removed from cryogenic storage (-80°C), the drastic temperature change will
shock the material and labels may fall off. We recommend that the labels be
allowed to thaw at room temperature before being placed into a boiling water
bath.
Q: Do you recommend any microtubes in particular for Tough-Tags?
A: Tough-Tags will adhere to any container, but they perform best with
tubes made of 100% pure virgin polypropylene. Also, it is important that they be
applied to tubes that are completely dry. If there is any moisture on the tube,
the Tough-Tags may peel or fall off.
Q: What are the advantages of
DuraSeal over Parafilm?
A: DuraSeal softens above 100°C (compared to
68°C), resists essentially all solvents, is compatible with solution
microwaving, resists breakage, and has no interleaf paper to strip away.
Q: Why do Cryo-Babies and Cryo-Tags not adhere very well to Nunc
Cryovials?
A: Cryo-Babies and Cryo-Tags will function with Nunc
Cryovials as long as they are applied directly on top of the white writing
surface provided on the cryovial.
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