The Defoamer CHEMOPUR Entschäumer W emulsion is a water-dilutable emulsion containing 10% active silicone defoaming agent. It offers the following advantages:

• Immediate defoaming action
• Long-lasting foam inhibition
• Low addition rates
• Quick and easy dispersion in foam systems
• High stability within a pH range of 4 to 11
• Foam control up to 100°C
• Good compatibility with dye baths and surfactants

The particle size and particle size distribution of the emulsion are optimized to achieve excellent foam control (defoaming) and long-lasting foam prevention (anti-foam effect). New manufacturing processes ensure product consistency and effectiveness.

CHEMOPUR ZINKATBEIZE is a special zincate process for the pretreatment of aluminum and aluminum alloys.

Unlike conventional zincate processes, CHEMOPUR ZINKATBEIZE produces uniformly thin, dense, and fine-grained zinc deposits with minimal etching of the aluminum surface. These deposition characteristics ensure maximum adhesion of subsequent metal coatings, including electroless nickel layers.

CHEMOPUR ZINKATBEIZE AUR is a cyanide-free zincate process for the pretreatment of aluminum and aluminum alloys before electroplating, particularly before electroless nickel plating.

CHEMOPUR ZINKATBEIZE AUR is also excellent for preparing aluminum castings and aluminum-silicon alloys for chemical nickel plating and hard chrome plating.

The zincate film provides improved adhesion on aluminum, ensuring excellent adhesion of subsequent coatings.