The epoxy coal tar pitch anti-corrosion coating in the epoxy coal tar pitch anticorrosive steel pipe is composed of two main components: epoxy and coal tar pitch. It is a two-component coating of methyl (epoxy) ethylene (curing agent) with excellent adhesion and toughness. , Moisture-resistant, water-resistant, chemical-resistant media, has the performance of preventing various ions from passing through the paint film, and has the characteristics of expansion and contraction with the coated object. The paint film never comes off or cracks. The thickness is 0.5～1.0mm. Epoxy coal tar pitch is a cost-effective form of anti-corrosion. Actual engineering tests show that epoxy coal tar pitch is used with cathodic protection. Petroleum and gas pipelines have basically not been corroded for 20 years.
The components are epoxy coal tar tar primer and top paint, both of which use epoxy resin and coal tar pitch as the main film-forming materials, and add various anti-rust pigments, insulating fillers, tougheners, leveling agents, thinners, It is made of anti-settling agent. The B component is a modified amine curing agent or a curing agent as the main material, with pigments and fillers added. The A and B components of this product are supplied as a complete set when they are sold. They are mixed in proportion during construction and used up within the specified time after mixing evenly.
Scope of application
It is mainly used for the anticorrosion of the outer wall of buried or underwater steel pipelines for oil, gas, water supply and heating. It is also suitable for all kinds of steel structures, wharfs, ships, sluices, gas storage tanks, oil refinery plant equipment and concrete. Waterproofing and anti-leakage of concrete structures such as pipes, sewage tanks, roof waterproof layers, toilets, basements, etc.
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