Tuff-Flash Plus LO polyurethane chemistry undergoes a chemical curing reaction that builds strength over time, unlike other solvent-based rubberized coatings that form films as the solvent flashes off. With this superior chemistry, the material can outperform and outlast similar coatings.

Tuff-Flash Plus LO is a versatile liquid flashing mastic that can seal even tough flashing details where a modified membrane or pitch pocket would have trouble sealing. It can be used on SBS, APP, smooth or mineral-surfaced asphalt roofs, and many types of metal substrates (with proper surface preparation). Tuff-Flash Plus LO can be applied with a brush or trowel, making it easy for in-house maintenance teams.