Surface Conditioning Solutions
We manufacture high-performance surface conditioning (activation) chemicals designed to enhance phosphate coating uniformity, improve crystal formation, and ensure superior adhesion performance in metal pretreatment processes.
Activation (Surface Conditioning)
Activation has a significant influence on the formation of a uniform phosphate coating layer. It generates fine active crystalline nuclei on the metal surface, which ultimately results in a fine-grained and uniform phosphate coating during the phosphating stage.
This process helps achieve consistent coating quality and improved surface uniformity across treated components.
Activation chemicals are specially formulated to prepare iron, mild steel, aluminium, zinc, and their alloys for subsequent phosphating processes. These substrates can be treated individually or in mixed production systems using either spray or immersion methods.
Types of Activation Process
1. Acidic Activation
Acidic activation is a cost-effective surface conditioning process used prior to phosphating. It does not require frequent bath analysis or complex process control, making it suitable for simple production setups. The solution can also be prepared using hard water without affecting basic performance.
This process promotes the formation of fine crystalline nuclei on the metal surface, ensuring improved phosphate coating development in the subsequent stage.
However, acidic activation is generally not recommended for non-ferrous substrates such as aluminium, as it may lead to surface incompatibility or inconsistent results.
2. Alkaline Titanum Phosphate Based Liquid Activation
This process is based on titanium-based compounds and is suitable for both ferrous and non-ferrous substrates. It promotes the formation of a compact, uniform, and fine crystalline structure during the phosphating stage.
The resulting coating improves overall surface quality and provides enhanced corrosion resistance, ensuring better performance in subsequent coating or painting processes.