Everyone has a trick for smoothing a silicone joint: dish soap and water, window cleaner, denatured alcohol, or the classic licked finger — which happens to be the fastest way to grow mould in your caulk. None of them give a truly professional finish, and most fight you on a long bead. Maxisil Smoothtex is the purpose-made answer.
It reduces the surface tension of the silicone, so the bead tools to a glossy, streak-free, drag-mark-free finish and won't stick to your tool or smear onto the tile around the joint. It also boosts workability on long runs, so a whole shower's worth of joints stays easy to tool. Applied before you shape the joint, it doesn't affect the fresh, unskinned silicone — it just makes the finish flawless.
There are two versions, matched to the silicone chemistry: Smoothtex A for the acetic-cure Wet Area and Pool silicones, and Smoothtex N for the neutral-cure Natural Stone — the N version is the one that's safe on marble and granite. Grab the version that matches your silicone and never fight a joint again.
Pro tip: Apply Smoothtex before you tool, not after, and shape the joint within a few minutes while the bead is fresh and unskinned — that's the window where it works best. Match the version to your silicone (A for wet area/pool, N for stone) and wipe any excess with a clean microfiber cloth.
