Ts-Pro Reifendichtmittel

Slow leak in my riding mower tire was driving me nuts, topping it off every couple days. Poured this in, spun the wheel a bit, and it's held steady for three weeks now. Beats pulling the tire off for a patch.

Had a nail puncture in my wheelbarrow tire and this sealed it up without me having to pull the tire off the rim. It's been holding air for a couple weeks now, which I honestly didn't expect.

Used it on a slow leak in my riding mower tire and it's held air for about three weeks now, which is way longer than I expected. Only knock is the bottle nozzle gets clogged between uses, so I have to poke it clear with a nail.