PPG - SEMCO® Tri-Seal Cap "TS" Seal Red Color - 1 Unit / Box

Does exactly what I needed to keep material from drying out in the cartridge. The red color makes it easy to spot in the tool drawer. Threads on cleanly and I haven’t had any leaks in storage so far. Only thing is it feels a bit tight the first few uses, but it breaks in fine.

Fits my Semco cartridges perfectly and keeps the material secure during storage and shipping. The red color makes it easy to spot in the toolbox. Threads engage cleanly, though you do have to make sure it’s fully tightened for a perfect seal. Overall very dependable.

Used these red Tri-Seal caps to close out partially used Semco cartridges for storage and for shipping to another site. Caps thread on cleanly, no leakage or contamination so far, and the triple-contact seal seems to hold up well. Only minor note is you need to order enough on hand since they’re sold per unit/box, but overall does exactly what we need.