Also PICA-X is a SpaceX variant of a NASA heatshield. It's typical for SpaceX to use the off-the-shelf material initially, then do R&D to customize it for a ma

Also PICA-X is a SpaceX variant of a NASA heatshield. It's typical for SpaceX to use the off-the-shelf material initially, then do R&D to customize it for a material that better suits their needs.