Untouchable with Scuff-Resistant Technology SRT is a low-odor, black heel mark-resistant floor finish that is an exceptional choice for those who want the highest gloss and wear with the least amount of labor. This low-maintenance floor finish is nonscuffing, durable, detergent-resistant and maintains its high gloss with minimal burnishing - a real labor saver. Excellent leveling and low odor make it easy to apply. It dries in 20 to 30 minutes. Untouchable is recommended for use on all types of resilient tile flooring and properly prepared hard surfaces.