Use this product for a water-tight seal on your plumbing fitting.
Aladdin’s Magic Lube is Polytetrafluoroethylene (PTFE) based lubricant that is excellent for use with rubber gaskets and fittings in the aquarium setting. Its hydrophobic nature allows it to effectively repel water, creating a watertight seal while lubricating the rubber o-ring. This lubrication is resistant to most chemicals, and was designed to hold up in adverse conditions, including saltwater. One of the most important aspects of this lubricant is its USDA H-1 rating: this rating means that it is environmentally safe, and is not likely to harm aquarium inhabitants if accidentally introduced to the tank or pond. This product should be used on rubber gaskets in canister filters, pond filters and bulkheads to prolong the life of the gaskets, and prevent leaks.
Magic Lube is a PTFE based, multipurpose sealant/lubricant that can be used in both wet and dry environments with a temperature range of -10 to 425F. It forms a durable, adhesive film that prevents contact, even under severe shock loads. Specially formulated to be non-melting, non-volatile, and waterproof, Magic Lube has been USDA H-1 Rated to be environmentally safe. It is chemical resistant and compatible with most metals, rubbers and plastics. It is commonly used on motors, o-rings, gaskets, bearings, water filters and much more.