Most soles in the world are black, and this tube is the version of the formula that matches them. Fill a worn heel or re-glue a dark sole and the repair reads as part of the shoe, not a patch on it.
A clear repair on black rubber shows as a glossy scar; the black formula simply becomes more sole. On dark boots, trainers and dress shoes, tint is the difference between repaired and invisible.
The pigment changes nothing underneath: identical thick body, identical flexible cure, identical grip on rubber and leather. Choose by the color of the shoe, never by strength.
The two spots dark shoes die: the outer heel edge ground diagonal by gait, and the toe dragged by drivers and cyclists. Both rebuild in thin black layers that wear like the original rubber.
Before the formula sets, smooth the surface with a tool dipped in soapy water and feather the edges into the surrounding sole. Once cured, a light sanding matches the sheen of worn rubber almost exactly.
Specifications as published for this model.
The black tube on a hang card — the hardware-aisle classic, ready for a hook in the garage or a kit in a drawer.
Part number 110212 — the standard black tube that workbenches and skate bags have carried for decades.
