B-Line Eaton miscellaneous hardware, Flat black lacquer, 6 ounce bottle, Brush on, Flat black powder coat, Touch-up paint

Yes, that's exactly what it's for. The SB420CFB is B-Line's touch-up paint in flat black lacquer, formulated to match a flat black powder coat finish, so scratches and field-cut edges on flat black B-Line strut, channel, and accessories blend back in rather than standing out as a gloss patch. It's a lacquer, not a powder coat, so it goes on cold with a brush instead of needing an oven cure.

Brush-on, straight from the bottle. No spray gun, no compressor, no masking rig. The 6 ounce bottle is the whole kit for the electrician or installer touching up cut ends and drill-outs on the job, which is why it travels well in a gang box. Nothing else is included, so bring your own brush if the bottle's applicator isn't enough for the area you're covering.

SB420CFB is the B-Line (Eaton) part number for the brush-on flat black touch-up. There's one configuration, so there's no finish or size option to specify when ordering, just the one 6 ounce brush-on bottle in flat black.

Six ounces per bottle, about .6 lb shipping weight. That's sized for punch-list work, touching up saw cuts on strut, nicked cable tray rails, and hardware scuffs, not for coating whole runs. If you're finishing a large quantity of field-cut channel, plan on more than one bottle.

A field cut exposes raw steel under the powder coat, and that bare edge is where corrosion starts. Brushing on the B-Line flat black touch-up restores a paint film over the cut and keeps the run looking uniform, which matters on exposed installs where the tray or strut is visible from the floor. It's paint, so treat it as a cosmetic and light protective coat, not a structural or rated coating.