Quick view Corrosion Block Liquid 4-Liter Refill - Non-Hazmat, Non-Flammable & Non-Toxic *Case of 4* - P/N 20004CASE Corrosion Block $599.99 Liquid 4-Liter Refill - Non-Hazmat, Non-Flammable & Non-Toxic *Case of 4*Corrosion Block is a clean fluid that actively protects metal using advanced polar bonding chemistry. Synthetic additives in Corrosion Block completely penetrate corrosion... Compare Add to Cart Wish list