News Center

The company has established the enterprise goal of "survival by quality, reputation by quality, and development by quality. Strengthen the training of technical personnel, and constantly enrich the first-line technical force to ensure the normal operation of the quality assurance system.

How to choose the anti-corrosion coating on the outer wall of stainless steel storage tank


Release time:

2019-03-25

Coating selection of the outer wall of the stainless steel storage tank: if there is no thermal insulation layer, it is usually necessary to consider the environmental conditions that do not touch the ground or soil, such as the coastal atmosphere. Epoxy zinc-rich primer, epoxy mica intermediate paint and polyurethane topcoat are usually used for anti-corrosion. In addition, it is sometimes necessary to consider the operating temperature of the storage tank. For the coating at the bottom of the outer wall of the stainless steel storage tank: the part contacting the ground or soil is usually similar to the anti-corrosion protection of the outer wall of the buried pipeline. Two epoxy asphalt coatings are used, each 125um, totaling 250um. There is also the use of thick film type modified epoxy coating as the bottom of the anti-corrosion coating

Coating selection of the outer wall of the stainless steel storage tank: if there is no thermal insulation layer, it is usually necessary to consider the environmental conditions that do not touch the ground or soil, such as the coastal atmosphere. Epoxy zinc-rich primer, epoxy mica intermediate paint and polyurethane topcoat are usually used for anti-corrosion. In addition, it is sometimes necessary to consider the operating temperature of the storage tank.
For the coating at the bottom of the outer wall of the stainless steel storage tank: the part contacting the ground or soil is usually similar to the anti-corrosion protection of the outer wall of the buried pipeline. Two epoxy asphalt coatings are used, each 125um, totaling 250um. There are also thick film type modified epoxy coating as the bottom of the anti-corrosion coating, coating thickness between 200- 300um.
Anti-corrosion coating on the top of the stainless steel storage tank: the anti-corrosion coating on the top of the storage tank is the same as the coating system on the outer wall of the storage tank, and the atmospheric corrosion environment needs to be considered. In addition, due to the needs of maintenance and monitoring and inspection, it is necessary for personnel to move around the top of the storage tank, so the top is usually made into an anti-skid rough surface, and the method is to evenly sprinkle 60 -80-80-purpose quartz sand between two polyurethane finishes, in order to prevent personnel from slipping during operation and causing personal injury.