Applications of THI® Series Acid Pickling Inhibitors and Acid Mist Suppressants

In metal pickling and chemical cleaning processes, acid pickling inhibitors and acid mist suppressants are essential chemical additives that ensure cleaning efficiency, equipment safety, and environmental protection.

Pickling effectively removes oxide scales, rust, and surface impurities, but acids are highly corrosive to metal substrates, and the generation of acid mist can also harm the operating environment and equipment.
Honor & Honest has developed the THI® Series Acid Pickling Inhibitors and Acid Mist Suppressants, formulated with advanced synergistic technology to provide dual protection—corrosion inhibition and mist suppression—widely used in the steel, chemical, power, sugar, and machinery industries.

1. Steel Manufacturing and Stainless Steel Processing Industry

In the pickling of steel strips, plates, wires, and structural components, high pickling speed and strong acid concentration can easily lead to over-pickling or pitting if protection is insufficient.
THI®F-115 Acid Pickling Inhibitor and Mist Suppressant is specially designed for steel pickling conditions. It combines strong corrosion inhibition and mist suppression, achieving a corrosion inhibition rate of over 98%, while maintaining pickling efficiency.
Its unique mist-suppressing components significantly reduce acid mist volatilization and improve the working environment in pickling lines.

Typical Applications:

• Hot-rolled and cold-rolled pickling lines
• Stainless steel pickling and passivation processes
• Removal of oxide scale from steel wires, pipes, and structural parts

2. Hot-Dip Galvanizing and Metal Pre-Coating Industry

In pretreatment processes such as hot-dip galvanizing, nickel plating, and aluminum coating, pickling is a key step for removing oxide layers and improving coating adhesion.
THI®F-117 Acid Pickling Inhibitor maintains excellent corrosion inhibition performance in hydrochloric, nitric, hydrofluoric, and organic acid systems, preventing excessive corrosion and hydrogen embrittlement.
For galvanizing lines where acid mist is severe, THI®F-116 Acid Mist Suppressant can be used in combination, effectively reducing acid mist emissions by more than 85% and enhancing environmental safety.

Typical Applications:

• Pretreatment of galvanized steel strips and pipes
• Pickling of automotive and construction steel sheets
• Chemical cleaning before electroplating processes

3. Chemical, Power, and Industrial Equipment Cleaning

During long-term operation of chemical plants, heat exchangers, boilers, and cooling systems, scale and corrosion deposits often form inside equipment and require periodic acid cleaning.
THI®F-115 and THI®F-117 effectively protect the metal interior surfaces from acid corrosion, while THI®F-116 suppresses acid mist dispersion and improves operational safety during cleaning.

Typical Applications:

• Boilers, coolers, heat exchangers, and heaters
• Reactors, evaporators, storage tanks, and pipelines
• Circulating cooling water systems and industrial descaling projects

4. Sugar, Petroleum, and Marine Engineering Industries

In sugar plants, evaporators, heaters, and condensers easily accumulate calcium carbonate and organic sugar scales during long-term operation, requiring phosphoric or nitric acid cleaning.
Adding THI®F-117 or THI®F-115 can significantly reduce metal corrosion rates and extend equipment lifespan.
In petroleum, natural gas, and offshore engineering maintenance, acid pickling inhibitors and mist suppressants are used for descaling and derusting pipelines, storage tanks, and steel structures, effectively preventing acid gas pollution to the environment.

Typical Applications:

• Cleaning of evaporators and heaters in sugar plants
• Acid cleaning of petroleum pipelines and refining equipment
• Rust removal and maintenance of marine steel structures

5. Machinery Manufacturing and Maintenance Industry

During machinery manufacturing, refurbishment, and maintenance, pickling is a vital step in surface pretreatment.
THI®F-217 Solid Acid Pickling Inhibitor features convenient use, low foam, and a high corrosion inhibition rate. It is ideal for small equipment, maintenance workshops, and circulating cleaning systems.
It effectively prevents dimensional changes caused by acid corrosion and enhances surface finish after pickling.

Typical Applications:

• Equipment manufacturing and maintenance workshops
• Cleaning of compressors, diesel engines, and cooling systems
• Rust removal and surface pretreatment of precision components

Conclusion

Honor & Honest THI® Series Acid Pickling Inhibitors and Mist Suppressants are known for their high corrosion inhibition rate, strong mist suppression ability, and excellent acid compatibility, making them the ideal choice in metal surface treatment and industrial cleaning applications.
Through precise product classification and scientifically optimized formulations, we provide safe, efficient, and eco-friendly pickling solutions for various industries.

Honor & Honest remains committed to supporting global customers in green manufacturing and equipment maintenance, helping enterprises improve cleaning efficiency, reduce energy consumption, and extend equipment lifespan.

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