As I recall it was "silicaone nail" it is clear, we tossed the tube after i a saved what i needed in the 3cc syringe, I'm a nurse so they are available to me easy. & yes for the bathroom & kitchen, we had some leaky spots around our glass where calk had worn. If you use too much, it fails to...
Silicone seal works great, the tubes are huge, I sucked enough out of a tube into a 3cc syringe, cap the syringe. The sealant peirces easy for future refils, the just use the prefiled 3cc syringe to smear a tad over the peirce. Works easier then plugs for me, I used to lose them at the worst...
I have several Canon printers. I have been using the Niagra CFS with my I950 for over a year now. YES , I too have some air problems but correcting the occasional air problem takes alot less time then refilling carts. Media street's inks are less then perfect for canon comparisons, so I use...