GZ-2 new polymer anti-corrosion coating for anti-corrosion steel pipes

Composition and Base Material Characteristics of GZ-2 New Polymer Anti corrosion Coating for Anti corrosion Steel Pipe Products

GZ-2 new polymer anti-corrosion coating uses modified acrylic acid, epoxy resin, chlorinated olefin and polyurethane as base materials, and adds non-toxic anti-corrosion pigments and additives to form a multi-layer composite anti-corrosion system. The coating achieves strong adhesion through chemical bonding between hydroxyl groups and the metal substrate, as well as the action of coupling agents. At the same time, metal oxide nanomaterials and rare earth ultrafine powders are introduced into the spatial network structure to form a dense interface transition layer, improving thermodynamic compatibility.

Core performance advantages

This coating can maintain long-term protection for more than 5 years in extreme acid-base salt and solvent media, with a dry film thickness of 200-300 μ m, far exceeding the standard of 100-150 μ m for conventional anti-corrosion coatings. Its room temperature self curing characteristics significantly improve construction efficiency (surface drying for 15 minutes, actual drying for 2 hours), and it has the ability to resist salt spray and aging. The self-healing function of the coating can resist external scratches, and the coating is not damaged during welding, which does not affect the welding quality. In addition, the coating has non-toxic and environmentally friendly characteristics, making it suitable for hygiene sensitive scenarios such as drinking water pipelines.

Application scenarios and compatibility

GZ-2 coating is widely used for anti-corrosion of the inner and outer walls of spiral steel pipes, covering areas such as drinking water pipelines, oil storage tanks, chemical equipment, sewage treatment facilities, and bridge steel structures. It has strong compatibility and can be used alone or as a bottom layer coating in combination with organic coatings such as epoxy, acrylic, polyurethane, etc., to meet the requirements of different anti-corrosion levels. For example, the inner wall of the spiral steel pipe is coated with this paint combined with sky blue topcoat, with a total paint film thickness of 250-300 μ m, while the outer wall is reinforced with multiple layers of glass fiber cloth to enhance the anti-corrosion effect.

Construction standards and quality control

Before construction, the inner wall of the steel pipe needs to be sandblasted with Sa2.5 level rust removal to expose the luster of the metal substrate. When painting, it is required that the ambient temperature be 20 ℃ and the humidity be below 85%, avoiding the influence of strong winds or extreme weather. The primer is applied by brushing, and the topcoat can be sprayed. The coating thickness is controlled at 0.2-0.4mm, and it is necessary to prevent large-scale water erosion within 24 hours after construction. During acceptance, it is necessary to pass electrical discharge testing (2500V/5000V), paint film thickness measurement, and adhesion testing, and there should be no defects such as pinholes or hollows.

Market supply and brand distribution

This coating is mainly produced by enterprises in Cangzhou, Changsha and other places, such as Cangzhou Jiasheng Coating, Changsha Huichen, etc. The price range is 8.88-26 yuan/kg, covering various packaging specifications from 20kg to 50kg. Brands such as "Huichen", "Judi", "Shuangzhou" provide customized services, support multiple processes such as brushing and spraying, and provide technical guidance and after-sales support to meet the bulk procurement needs of industries such as petroleum, electricity, and municipal engineering.