PPG Aerospace® PR-716 Tack Free Coating
PPG Aerospace® PR-716 is designed for application over uncured polysulfide sealants to produce a tack-free like condition. It has a service temperature range from -65° (-54°C) to 250°F (121°C), with intermittent excursions up to 275°F (135°C). This material significantly reduces the risk of foreign objects and debris (FOD) from adhering to the sealant's surface during its cure cycle.
PPG Aerospace® PR-716 is a one-part, waterborne polyurethane coating. The material is a low viscosity liquid suitable for application by brush or a conventional spray method.