Sealant Coolant System 4-Gram Tablets 5pk

The Sealant Coolant System 4-Gram Tablets 5pk by Chevrolet Performance is a precision engine cooling additive designed for modern automotive cooling systems. As a seasoned mechanic, you know that coolant chemistry is critical to preventing cavitation corrosion, a silent killer that eats through water pump impellers and cylinder head passages. These tablets address that vulnerability by introducing a protective sealant compound directly into your coolant, reducing microscopic pitting and extending the life of internal cooling passages.

Each 4-gram tablet is formulated to disperse evenly in your coolant mixture without requiring pre-mixing or special additives. The sealant works by depositing a thin, self-healing protective film on ferrous and non-ferrous metal surfaces inside the cooling system—aluminum heads, cast-iron blocks, brass fittings, and steel radiators. This approach is especially valuable in high-performance or heavily modified engines where elevated combustion pressures and sustained thermal cycling accelerate cavitation damage. Simply drop the tablet into your coolant reservoir or radiator (depending on system design), and the tablet dissolves gradually as the engine runs and coolant circulates.

This 5-pack is ideal for technicians performing cooling system rebuilds, vintage restoration projects, or annual maintenance on high-mileage vehicles. It integrates seamlessly with conventional ethylene glycol and propylene glycol coolants and is fully compatible with all Chevrolet Performance engines—including LS, LT, and big-block platforms. For best results, use one tablet per flush cycle or per coolant top-off on heavily modified builds, where coolant condition deteriorates faster. Whether you're prepping a street engine for years of reliable duty or protecting a race build between seasons, this sealant system delivers cost-effective insurance against cavitation failure.