OK guys, once again.
There is a big quality issue with HYSOL 9462.
1 tube out of 2 gets air into one of the components ( usually on the white side ).
There are 2 possible fixes:

1) Mix the stuff out of the nozzle, making sure that you get the correct mixing ratio ( either 1:1 or 2:1, I am not in my workshop and cannot verify )

2) Put all your tubes in the oven at 50 to 70°c for one hour. Remove one tube after each other and "centrifugate" as fast as you can with your arm ( keeping the cartridge head towards you ). Get the cartridges to rest till they are cold with the heads up.
When you start to use the cartridge, first purge the air that will be at the top of the cartridge. When both components get out of the tube, install the mixing tip.

Note that a lot of guys believe that they have had mixing tip issues with Hysol. This is in fact an air problem. We have tested all types of mixing tips on our UAVs and never had any problem with them.
Bear in mind that this product is meant to be used with mixing tips ...