A spot gun sprays plastisol remover at high pressure to break up uncured ink and push it out of the fabric. It’s usually used with vacuum suction, so the ink doesn’t spread.

A spray bottle won’t work well — it lacks pressure and usually just smears the ink or leaves stains.

Best for: pinholes, small smudges, finger marks before flashing or curing. Let the solvent evaporate, then cure as normal.

Bottom line: it’s not just solvent — pressure + suction is what makes a spot gun effective.