Solstice PF Spray consists of 80% PF-HP with a 20% Solstice Propellant blanket. It can be sprayed directly from the container using a spray nozzle. In 2015, NASA announced it had tested Solstice Performance Fluid (PF), stating it is a “preferred replacement for cleaning and non-volatile residue (NVR) verification sampling of NASA propulsion oxygen systems hardware, ground support equipment (GSE), and associated test systems.
Solstice is a registered trademark of Honeywell International, Inc
NASA Solstice PF Spray Study