Our NEWEST innovation by MICRONIC : Eco-Friendly Rack RM

TPE Capcluster (with External Thread)

Compose your product

Request quote

Securely seal your storage tubes

With the Micronic TPE push caps for external thread tubes

The Micronic TPE Capcluster with External Thread is a sheet of 96 push caps that can be used to seal an entire rack of 96 tubes at once. After the capcluster is used to seal a rack of push cap tubes, the foil backing can be removed to leave each tube individually capped. The Micronic TPE Capcluster with External Thread can seal the following 96-well format tubes: the 0.30ml, 0.40ml, 0.75ml, 0.80ml, 1.40ml and 2.00ml externally threaded tubes from Micronic. TPE Capclusters are also available for internally threaded tubes. View the product page here for more information.

A Micronic 96-well format rack with lid of push cap tubes in freezer

Product features


The TPE capclusters can be pierced repeatedly without losing seal integrity. They can be used to seal sample storage tubes in temperatures as low as -80°C.

Tube Compatibility

The TPE Capcluster are compatible with 96-well format external thread tubes. They are available in 13 colors: natural, white, yellow, orange, red, pink, purple, blue, light blue, light green, green, black, and grey.

Flexible Quantities

The TPE capclusters can be purchased online in large packs of 240 clusters. To order smaller packs of 40 clusters, please contact our sales team.


The TPE capclusters resist chemical solvents. All caps are produced in a class 7 clean room and are RNase/DNase and Pyrogen free.

  • Material Thermo Plastic Elastomer
  • Cap height 4.8 mm
  • Temperature range -80°C to +100°C (without retaining foil)
  • Available sterile, gamma radiated, (15 kGy avg.) or Et0 treated
  • Available pre-capped on Micronic push cap tubes
  • Available with split septum to pierce with pipette tip

Satisfied customers

That's why we do it

"At NBS Scientific I got quick and reliable responses to questions and appointments. All advice and attention was expertly given. We've been happily working together for over 2 years now. "

The Charles River Labs logo
Charles River Laboratories

Need more information?

Don't hesitate to contact us.

Want to learn more about the TPE capclusters? Eager to request a free sample? Contact us today with your questions.

Request More Info - Labware

  • Hidden
  • Hidden
  • This field is for validation purposes and should be left unchanged.

Product downloads

  • Caps for Sample Storage Tubes Download

Related products

Rack of 0.40ml externally threaded tubes uncovered with grey screw caps
Free samples available!

0.40ml External Thread Tubes

The 0.40ml tube lets users store low volume samples. Due to thick tube walls, the tube has excellent properties for ultra-low temperature storage.
View product
A Micronic 96-5 rack with lid of 2.00ml externally threaded tubes with grey screw caps

2.00ml External Thread Tubes

The 2.00ml tubes with external thread allow researchers to store high volume samples in a space-efficient 96-well format.
View product

Micronic Push Cap Capper CP400

The Micronic Push Cap Capper CP400 is a cost effective way to manually seal 96 push cap tubes at once.
View product

Micronic Push Cap Capper CP600

The Micronic Push Cap Capper CP600 can cap 0.50ml, 0.75ml, 1.10ml, and 1.40ml push cap tubes with Capmats, Capbands, or Capclusters.
View product