Specialty additives (HDG)

Specialty Additives (HDG) for Hydrochloric and Sulfuric Acid Pickling Baths: Enhancing Efficiency and Longevity

Smart additives to increase bath life or improve efficiency
Advanced formulations tailored for different metal types
Etches, etch additives and degreasers for the galvanizing process

AD Chemicals offers the ideal solution for every stage of the hot-dip galvanising process.
Our Specialty Additives HDG product line includes a comprehensive selection of high-performance degreasing agents, cleaning and etching additives, inhibitors, and other specialized pickling additives. Whether you’re looking to optimise surface preparation, protect your equipment, or improve overall process efficiency, AD Chemicals provides reliable and effective chemistry tailored to meet the demands of modern galvanising operations.

Our Specialty Additives HDG product line is backed by extensive research and development, ensuring that all formulations meet the stringent demands of the galvanizing industry. Our additives are designed not only for effectiveness but also for safety, helping to protect personnel and equipment. When selecting additives, factors such as compatibility, environmental impact, and cost-effectiveness must be considered.

In modern manufacturing, the importance of specialty additives cannot be overstated. They play a crucial role in enhancing the quality of the final product, extending the life of the processing baths, and ensuring operational efficiency. The right additives can significantly reduce downtime and maintenance costs, which is vital for maintaining a competitive edge in the market.

AD Chemicals has the perfect product for every step in the hot-dip galvanising process. Based on many years of experience in delivery chemistry to the galvanizing industry AD delivers quality products, backed by technical service as no other, our products are key in achieving the perfect chemical surface treatment.

Additives for hydrochloric – and sulfuric acid pickling baths

Utilizing the right additives for hydrochloric and sulfuric acid pickling baths can lead to significant improvements in the quality and durability of the galvanized coating. For instance, using a corrosion inhibitor can protect your steel components from further degradation during the pickling process.

In the galvanizing process, steel is pickled in an acid tank after degreasing and before pre-fluxing. Acid pickling has the goal to remove the iron oxides or scales from the steel surface to expose a bare area on which a zinc layer can be place in subsequent process steps. To prevent corrosion during pickling a corrosion inhibitor is recommended as well as a fume suppressant (against nitric gases). AD Chemicals offers in this area:

The pickling process is a critical step in galvanizing as it prepares the metal surface for zinc application. The efficiency of this process can be greatly enhanced by incorporating specialized additives that mitigate corrosion and optimize the acid solution’s effectiveness.

- Corrosion inhibitor 04C is ad high performing and cost effective inhibitor for hydrochloric acid pickling bath additives. It is formulated to meet the needs of continuous hydrochloric picklers. It meets all the requirements of a qualitative pickling inhibitor: enables descaling, high-quality protection, can be rinsed, reduces acid consumption, metal and gage loss, fumes, is durable and results in a perfect uniform pickled surface.

Additionally, applying the right foam blanket additive can help maintain optimal temperatures and reduce the release of harmful fumes, creating a safer working environment. Understanding the interaction between various additives can lead to a more efficient production process and higher quality outcomes.

Additive SP is a foam blanket additive for hydrochloric acid batch pickling baths. It creates a uniform layer of foam on the surface of a steel pickling bath. It reduces heat loss and keeps corrosive hydrochloric fumes in the bath. For optimal performance to be used with Corrosion Inhibitor 04C.

Ask expert advice

Degreasing and cleaning products

Effective degreasing is paramount in preparing the steel surface for subsequent treatments. The right cleaning agents should not only remove contaminants but also be environmentally friendly and safe for workers. Our range of alkaline cleaners is specifically formulated to address these needs, ensuring compatibility with modern processing equipment.

Like in many process, in the galvanizing process, cleaners have an important role. Making the surface ready for the next processing steps to enable a perfect finish. AD offers a range of alkaline cleaners that meet the special demands for in line cleaners including; safe handling, waste water processability and foaming characteristics.

Furthermore, understanding the chemistry of the cleaning agents is essential to optimize their performance. Factors such as pH levels, temperature, and concentration can dramatically affect the efficiency of the cleaning process. Therefore, regular monitoring and adjustments are necessary to achieve the best results.

The main AD products are:

Choosing the right degreasing product can have long-term benefits, such as reducing the frequency of chemical replenishment and minimizing waste. Each of our products has been tested in various conditions to ensure that they meet industry standards and can perform reliably under different operational circumstances.