It is important to understand that crimping a cap could result in an inadequate seal if not done properly. Follow the steps shown below to achieve the best seal.

  1. You need a calibrated crimping tool (https://mtc-usa.com/Crimping-Tool) This means that the chuck has to be adjusted every 10 -15 crimps with the adjusting tool it comes with.
  2. After each crimp, test the seal to make sure it does not spin on the vial.
  3. After each crimp, make sure the septa is not dimpled or concave.
  4. After each crimp, make sure that the aluminum cap is evenly bent under the serum finish vial