"Form: This specification cover glass cloth impregnated with a heat-reactive@ thermosetting@ addition-cure polyimide resin system@ the resin to be supplied in a ""B"" stage condition. Application: Primarily for laminated structural parts requiring high strength and long-term heat resistance up to 230 ??(446 ?? and short-term exposure up to 290 ??(555 ??. Safety - Hazardous Materials: While the materials@ methods@ applications@ and processes described or referenced in this specification may involve the use of hazardous materials@ this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved. Classification: Shall be as follows: Class 1 - Low-Flow Addition-Cure Resin Class 2 - High-Flow Addition-Cure Resin"