South Gate Engineering, LLC offers a wide variety of tank linings to suit many different applications. Below is a partial list of linings available:
TANK LININGS
Epoxy Phenolic: This high solids epoxy phenolic is applied by spraying all internal surfaces of the vessels. With 20 plus years of excellent field history as a coating for storing potable water in vessels, our epoxy phenolic is an excellent choice for commercial and domestic water applications. We strongly recommend this NSF approved coating on any water application operating at less than 200 degrees F.
Glass Lining: This lining is identical to the one available on all domestic hot water heaters. The process consist of coating the interior of the vessel with a porcelain material and then firing at 1500 degrees F to fuse the glass to the steel. Typically, this lining is applied at 0.006 to 0.015 inch for a single coat. This lining meets military specification requirements.
Cold Water Epoxy: This polyamide epoxy is also applied by spraying all internal surfaces of the vessels. With years of excellent field history as a coating for storing potable water in vessels, this epoxy is an excellent choice for commercial and domestic water applications. We strongly recommend this NSF 61 and AWWA D 102 approved coating on any water application operating at less than 120 degrees F.
Durament Cement: This lining is an excellent coating for water storage tanks and hot water generators. Durament is a low soluble hydraulic cement mixture with special bonding agents added. Durament is formulated with the same coefficient of expansion as the steel tank shell, and as such, is unaffected by extreme temperature changes. This lining is also approved for use under military specifications.
Rubber Lining: All commercial rubber linings are available upon request. If the type of rubber is not specified, please provide solutions and concentrations of the liquid to be stored in the vessel. The proper lining material will be specified and quoted based on the application. Operating temperature for rubber lined tanks should be 180 degrees f or less.
Hot Dip Galvanizing: This coating is applied by dipping the equiptment into hot molten solution of zinc in order to form a zinc coating that is metalurgically bonded to the steel’s surface. The zinc coating protects against corrosion by providing protection to the steel in two ways: it shields the base metal from the contents, and because it is more electronegative than steel, the zinc gives cathodic or sacrificial protection.
Zinc-Epoxy Lining: This 90% solids, zinc-rich epoxy lining provides corrosion protection superior to hot-dipped galvanizing. It has a 15-year field history in the water filtration industry with excellent results. The material is sprayed to a thickness of 2-5 mils. It is non-toxic when dry and gives excellent high temperature and abrasion resistance.
Vinyl Ester: This vinyl ester resin epoxy with inert flake pigment has outstanding chemical and physical properties. It is a thick film lining which was design for resistance to severe service exposure and is very abrasive resistant. It meets 21 CFR 175.300 and 177.2420. When force cured at 200 deg F for four hours, it also meets NSF standard 61 for cold potable water. This is a favorite for offshore sea water or brine applications as well as for vessels containing filtration media such as carbon due to its abrasion resistance.