Powder Coatings Application

The Powder Coatings Industry is dynamic and characterized by change, innovation, and rapid growth. From a small beginning powder coatings are now a very important part of the coatings industry using a variety of polymers, to give tough, chemical resistant and outdoor durable systems. The range of gloss levels, finishes and colors achievable in a single operation, is almost of limitless variety.

Titanium dioxide pigments can have a pivotal influence on all of the properties and applications of powder coatings, Millennium Inorganic Chemicals has the experience to help you.

Various aspects ands properties of Titanium Dioxide use can significantly influence the performance of the coatings,

The gel time of a powder coating is of crucial importance to the performance of the coating. Problems associated with variations in gel-times include:

• Incompatibility - In powders with differing gel-times, this may be seen as loss of gloss or surface haze formation after mixing;
• Sagging - Long gel-times lead to good flow, but too long result in sag and fat edges;
• Pinholing - Is more prevalent (especially from substrate outgassing) in powders with short gel-times;
• Edge Coverage - Can be low with longer gel-times.

If necessary, additives and other formulation changes can be made to "fine tune" gel-times.

Powder coatings have found many uses:

• Household appliances,
• Automotive components,
• Metal profiles for doors and windows,
• Lighting equipment,
• Bicycles,
• Office equipment,
• Oil and gas pipelines

Each application requires careful selection of powder type and its raw materials. Our range of multipurpose and superdurable pigments ensure that you have the right grade available for all your needs.

In powders, as in any coating, the full potential for TiO₂ pigment performance (in terms of color, opacity, gloss, and flow) cannot be realized without full dispersion.

Millennium Inorganic Chemicals' Tiona^® TiO₂ pigments are surface treated to facilitate good, rapid dispersion, and this is reflected in powder coatings exhibiting:

• Excellent opacity and pigment efficiency;
• Excellent tinting strength;
• Full gloss with minimum haze and surface defects;
• Optimum flow;
• Homogeneity in the coating, leading to maximum mechanical performance for a given binder system.

Because of the easy dispersion characteristics of Tiona TiO₂ pigments, the incidence of rejected powder batches and the need for re-extrusion is minimized.

Influence of TiO₂ Top

Good dispersion of a TiO₂ pigment is a prerequisite to developing high opacity In the production of powder coatings the TiO₂ needs to be immediately dispersible and fully utilized in just a few seconds in the extruder barrel. The surface treatment applied to Tiona TiO₂ pigment products is designed to give rapid and easy dispersion in powder coatings extruders.

Influence of TiO₂ Top

The durability of any pigmented organic coating, including powder coatings, is strongly influenced by the titanium dioxide pigment used in its formulation.

Millennium Inorganic Chemicals' advanced processes achieve the highest possible purity of base pigment. The brighter, cleaner tone achieved with Tiona TiO₂ pigments allows you maximum flexibility in producing a wide range of colors.

Influence of TiO₂ Top