Corrosion Block 4-Liter Liquid Refill Bottle

Corrosion Block Liquid actively protects metal and electronics using advanced polar bonding chemistry, deeply penetrating joints, connectors, and fasteners to kill corrosion on contact. It is designed for boaters who need a single 4-liter refill bottle rather than a full case.

Synthetic additives completely penetrate corrosion cells, displacing salt water and allowing it to evaporate, while a hydrophobic film remains behind to act like an "off switch" for future corrosion. It's non-toxic and non-flammable, trusted worldwide to protect switches, circuit breakers, battery terminals, fuel tanks, connectors, and electronics in safety-critical settings. Browse more options in our cleaning, detailing, and protection category.

Key Features: Kills corrosion on contact, advanced polar bonding chemistry, leaves a hydrophobic protective film, non-toxic and non-flammable, protects switches, circuit breakers, connectors, and electronics, sold individually.

Frequently Asked Questions

Is this product safe to use around electronics? Yes, it's specifically formulated to protect electrical and mechanical equipment, including electronics.

Is this sold individually or as a case? This is a single 4-liter refill bottle, sold individually.

Is this product hazardous or flammable? No, it's non-hazmat, non-flammable, and non-toxic.