Master Bond Polymer Adhesive EP21LPT-6 is a two component black colored, corrosion inhibitive, polysulfide adhesive/sealant composition for high performance bonding and sealing formulated to feature medium pot life and cure at room temperature or more rapidly at elevated temperatures. It develops high performance characteristics, especially for sealing and coating of metal components on weapons and aircraft systems for protection against corrosion. The product is effective over the continuous temperature range of -54°C to +93°C (-65°F to +200°F) and fully meets MIL-S-81733C Type IV. The hardened adhesive/sealant is a superior electrical insulator.