300-5G - Cantesco 300 Low-Temp Leak Detector - 5 Gallon Pail

Find Gas Leaks Fast, Even in the Cold

Nothing wastes money and compromises weld quality like a shielding gas leak. With the Cantesco 300-5G Leak Detection Compound, you can quickly identify leaks in your regulators, hoses, and fittings before they become a problem. This 5-gallon pail is the perfect shop-sized refill for busy fabrication floors, allowing you to top up your spray bottles and keep your equipment running efficiently without constantly buying small bottles.

Designed for the real-world conditions welders face, this "Blue" formula is built for the cold. If you are working on a rig in the winter or in a drafty shop, standard leak detectors can freeze up or get sluggish. Cantesco 300 stays liquid and effective down to -25°F, so you can trust it year-round. When applied to a pressurized connection, it instantly produces a foam of bubbles at the source of the leak, making it easy to spot even pinhole escapes in your argon, CO2, or oxygen lines.

Safety is key in any welding environment. This compound is non-toxic, biodegradable, and safe for use on oxygen lines, eliminating the risk of reaction with fuel gases or oxidizers. Whether you are troubleshooting a TIG setup that isn't getting coverage or safety-checking an oxy-fuel cutting torch, Cantesco 300 gives you the visual confirmation you need to fix the seal and get back to work.