I have just took out from the the closet the rigid and flexible resins and tanks.
They have not been used for almost a year (if no more). There was a separation of the materials to layers in the tank. The flexible (that is gray) turn into very dark chocolate color at the top layer and the bottom was completely white. It was extremely hard to remove the white layer from the silicon of the tank, took me about 30 mints to scrap it all from the silicon and put it in a different container. I put this aside for now.
Took the Rigid and in the tank, the bottom layer turned into dense material (like caramel) that was stick to the shovel. Didn’t have a change to mix it together again. I also scratch the LT time while trying to remove it, it was so sticky so I put it aside as well.
Took a new LT tank and mixed well the rigid cartridge. Started a print and… no resin going out from the cartridge. Pulled the cartridge out and fliped it so the valve is facing up. I’ve advanced a flat screwdriver through the valve and it was hard to pass through a thick layer of very dense material.
My question is how do I store a used cartridge and tank for a long term? Is it got expiration? couldn’t find anything on the box or on the cartridge labels.
Wants to know if I have no other choice but to dispose 2 LT tanks (printed twice on each) and 2 almost full cartridges.