Liqui-Moly Marine Antifreeze is a high-performance antifreeze solution specifically developed for the safe overwintering of marine cooling and water systems. Formulated using a glycerin and water-based mixture, it delivers reliable frost protection while simultaneously safeguarding internal components against corrosion and oxidation.

This marine antifreeze allows systems to be winterised using a coordinated mixing ratio with water, eliminating the need to completely drain pipes and lines. This significantly reduces preparation time while ensuring comprehensive protection throughout the colder months. Its biodegradable and environmentally friendly formulation makes it safe for marine environments without compromising performance.

Designed for use across all external cooling water systems, Liqui-Moly Marine Antifreeze is fully compatible with common materials found in boat engines and marine toilet systems. It prevents freezing damage, protects metal components from corrosion, and ensures trouble-free recommissioning when the boating season resumes.