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The Everyday Microtube, Engineered Better
SureSeal S™ tubes handle the work your lab does every day: enzyme digests, DNA isolation and purification, centrifugation, incubation, and routine sample and reagent storage. They are molded under clean room conditions from MTC Bio's BioClear™ co-polymer, an advanced polypropylene that maximizes clarity for easy pellet visualization without sacrificing strength.
Sterile comes standard, by electron beam irradiation, and every tube is certified RNase-, DNase-, and pyrogen-free. You get molecular-grade confidence in every bag, at a price built for daily use.
28,000 × g
Tested centrifugal strength
−90 to +121 °C
Usable temperature range
Sterile
E-beam sterilized, standard
10 Stop-Pops™
Cap locks included in every bag
A Better Cap, a Better Seal
The full-size cap has a frosted marking surface, giving you room for clear, legible sample IDs.
A unique ring-and-groove closure creates a liquid-tight seal while reducing the force needed to open and close the cap. That means less thumb strain across hundreds of tubes a day, and more secure samples in the centrifuge, heat block, and freezer.
Boil-Proof Performance
Watch the SureSeal S™ seal hold in boiling water, with Stop-Pops™ cap locks keeping lids closed under heat and pressure.
Built for Busy Benches
Self-Standing Bag
A gusseted bottom lets the bag stand open on the bench for fast, one-handed dispensing.
Stop-Pops™ Included
10 locking clips per bag keep caps closed during boiling and high-temperature incubation.
Color-Coded Options
Blue, red, green, orange, purple, yellow, opaque black, or assorted, for instant sample sorting.
Light-Blocking Black
C2000-OB protects light-sensitive reagents and samples.
Three Volumes
0.5 mL, 1.5 mL, and 2.0 mL formats cover nearly every microtube workflow.
Bagged-by-50 Options
C2000-50 and C2000-50AST ship in bags of 50 to limit exposure of unused tubes.
Choose Your Format
1.5 mL Standard
Catalog No.: C2000 (clear), C2000-B/R/G/O/P/Y/OB (colors), C2000-AST (assorted)
Best for: Everyday digests, preps, and storage
1.5 mL in Bags of 50
Catalog No.: C2000-50, C2000-50AST
Best for: Shared labs and low-contamination dispensing
2.0 mL & 0.5 mL
Catalog No.: C2002 (2.0 mL), C2007 / C2007-AST (0.5 mL)
Best for: Larger preps or small-volume reactions
Locktop Caps
Catalog No.: C2051 (1.5 mL), C2050 (0.5 mL, 1000/pk)
Best for: Extra cap security during handling
Accessories
Catalog No.: C2086 Stop-Pop™ clips, C4010 PolyPestle™
Best for: Cap locking and in-tube homogenization
See SureSeal S™ in Action
Typical Applications
- Restriction enzyme digests
- DNA and RNA isolation and purification
- PCR setup and reagent aliquoting
- Boiling lysis and heat-block incubation
- High-speed microcentrifugation
- Short- and long-term sample storage
Tip for Boiling and Heat Steps
Snap a Stop-Pop™ over each cap before boiling or heating above 90 °C. Pressure buildup can pop standard caps open, and the clips keep your samples, and your heat block, clean.
Frequently Asked Questions
Are SureSeal S™ tubes a good alternative to Eppendorf® Safe-Lock tubes?
For most routine applications, yes. SureSeal S™ tubes are sterile, rated to 28,000 × g and −90 °C to +121 °C, and include Stop-Pops™ cap locks for boiling steps, at a lower cost per tube. Confirm fit in your specific rotor and rack. Eppendorf® and Safe-Lock® are trademarks of their respective owner; Blue Tiger Scientific is not affiliated.
What g-force can SureSeal S™ tubes handle?
SureSeal S™ tubes are tested up to 28,000 × g.
What temperature range are SureSeal S™ tubes rated for?
They are usable from −90 °C to +121 °C, covering freezer storage, heat blocks, and autoclaving.
Are SureSeal S™ microcentrifuge tubes sterile?
Yes. They are sterilized by electron beam and certified RNase-, DNase-, and pyrogen-free.
What are Stop-Pops™?
Stop-Pops™ are cap-locking clips that keep caps closed during boiling and high-temperature steps. Ten are included in every bag of most 1.5 and 2.0 mL formats, and they are also sold separately (C2086, 100/pk).
What sizes and colors are available?
0.5, 1.5, and 2.0 mL. The 1.5 mL tube comes in clear, blue, red, green, orange, purple, yellow, opaque black, and assorted colors.
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