SRD:Ectoplasmic

Ectoplasmic: As a standard action, ectoplasmic armor converts itself, its wearer, and all the wearer’s equipment into ectoplasmic form for up to 5 minutes once per day, as the power of the same name. In this semisolid state, the wearer gains damage reduction 10/psionics.

Faint psychometabolism; ML 5th; Craft Psionic Arms and Armor, ectoplasmic form; Price +10,800 gp.