Johns Manville Microlite® AA Unbonded is a lightweight, binderless insulating blanket designed for applications in which intermittent temperatures may reach as high as 1000°F (538°C). Because of its binderless construction, Microlite AA Unbonded eliminates outgassing or binder vaporization in such applications as cold face insulation in thermal fabrications for aircraft engines or thermal insulation in solar collectors. Microlite AA Unbonded provides superior thermal and acoustic performance and withstands temperatures up to 1000°F (538°C) for short-term exposure and up to 850°F (454°C) for continuous exposure.