Blueshift Materials, Inc. developed and manufactures in a roll-to-roll format a thin, high performance polymer aerogel film called AeroZero® and AeroZero laminates. AeroZero is 85% air, and the company has branded it Structured Air. The film thus has low density, high porosity, extremely low dielectric constant and loss tangent, and extremely low thermal conductivity. AeroZero retains most of the key properties of polyimide: wide operating temperature range (-200 C to +260 C), inherent flame retardancy, etc. Polyimides are widely accepted in aerospace and electronics applications.