On Orders Over $99
On Orders Over $99
Inside corners are where silicone joints go wrong — a flat tool can't follow the angle, and you end up with a smeared, uneven mess. The BIHUI corner sealant knife is shaped specifically for the job. Its corner-specific profile smooths sealant in inside corners and tight transitions, gliding through fresh silicone to leave a uniform, professional joint with crisp lines.
It's built for wall-to-wall corners, floor-to-wall transitions, and the tight spots a finger or flat tool can't handle cleanly. Pair it with the silicone applicator kit and caulking gun for clean joints throughout.
Pro tip: Lay the bead, then pull the knife through the corner in one smooth, continuous stroke — stopping leaves a witness line. Keep the tool wiped clean between pulls so it glides instead of dragging.