Form: This specification covers six (6) types of sealing compounds curing to elastomeric materials. Application: These products are used primarily for sealing aircraft firewall structures against passage of air@ vapors@ and flames but usage is not limited to such applications. The sealing compounds are effective at all temperatures from -65 to +400 ??(-54 to +204 ?? and are able to withstand flash temperatures of up to 2000 ??(1093 ??. Safety - Hazardous Materials: Shall be in accordance with AS5502 (1.1) Classification: Compounds covered by this specification are classified as follows: Type 1 - One-part (or two part@ pre-mixed@ room temperature stable) high temperature silicone@ condensation cured Type 2 - Two-part high temperature silicone@ addition cured Type 3 - Two-part high temperature silicone@ condensation cured Type 4 - Two-part high temperature silicone@ rapid curing@ condensation cured Type 5 - One-part high temperature silicone@ condensation cured@ extended life Type 6 - Two-part high temperature silicone@ lightweight@ rapid curing@ addition cured