Marine Grade Non-Metallic Anti-Seize is an exceptional Anti-Seize compound that was designed from the ground up to fight corrosion and protect against galvanic corrosion between dissimilar metals in harsh marine environments. Acts as an electrical insulator between dissimilar metals inhibiting galvanic corrosion. Environmentally responsible alternative to products containing lead, chromates, metallic zinc, copper, heavy metals or other marine pollutants.