High-Frequency Straight Seam Welded Pipe And Cold Spray Zinc Coating Difference

Cold galvanized paint and high-frequency welded tubes are high zinc content of anti-corrosion products, and the two anti-corrosion performance is also a leader, with its own product performance advantages gradually developed into the mainstream industrial anti-corrosion products in today's market, so what are the similarities and differences between the two:

1, zinc content is different

Cold galvanized paint: cold galvanized paint zinc dry film of zinc content of 96

High-frequency straight seam welded pipe: the national standard zinc content of 60%, 70%, 80% of three standards

Both belong to the electrochemical anticorrosive coatings, can provide very good cathodic protection characteristics, due to the different zinc content, the anti-corrosion effect is different.

2, the composition is different

Cold galvanizing paint: cold galvanizing paint zinc is produced by high-purity zinc powder, solvents, additives, etc. using a special coating coating technology, belongs to a single-component paint.

High-frequency straight seam welded pipe: by the molecular epoxy resin, special resins, zinc powder, additives and lead-free solvents, amine curing agent composed of two-component self-drying paint.

There is a big difference between the two in the composition of the ingredients, from the point of view of the use of cold galvanized paint is easier, but from the point of view of the market utilization, the latter to be more superior.

3, different construction

Cold galvanized paint: brush, roller coating, spraying. Recommended film thickness of 80μm-100μm.

High-frequency straight seam welded pipe: by the molecular epoxy resin, special resins, zinc powder, additives and lead-free solvents, such as paint for the A component, the other component for the amine curing agent of the two-component self-drying paint.

Both should be de-oiled and descaled on the steel surface, sandblasted, the surface roughness of 35μm-75μm, because the two zinc-rich properties, it must be in full contact with the surface of the steel in order to play the role of zinc, so that it can achieve a better anticorrosive effect.

4, supporting different

Cold galvanized paint: cold galvanized paint + cold galvanized sealer

High-frequency straight seam welded pipe: high-frequency straight seam welded pipe + epoxy iron intermediate paint + fluorocarbon paint high-frequency straight seam welded pipe polysiloxane topcoat

5, different uses

Cold galvanized paint is instead of hot-dip galvanizing process of the best paint, suitable for painting in the protection of electric facilities, such as power plants, substations, towers and so on.

High-frequency straight seam welded pipe is widely used in metallurgy, containers, all kinds of transportation vehicles, engineering machinery, steel plate pretreatment shot blasting, especially suitable for the use of steel structure rust prevention, is a very good rust maintenance primer.