Protective Coatings
Mineral selection for barrier and durability considerations in protective systems.
Overview
Protective coatings shield structures and equipment from corrosion, chemicals and weathering. They work as systems, often in several layers, and each layer has its own requirements.
Mineral fillers affect the barrier and mechanical properties of these films. Selection has to take account of chemical resistance and compatibility with the binder system.
Formulation challenges
- Barrier properties
- Particle shape and packing influence how the film resists the passage of water and other agents.
- Chemical resistance
- Fillers must stay stable in the environments the coating will face.
- Film build and mechanics
- Fillers affect film thickness, hardness and the behavior of the coating under stress.
The role of mineral fillers
- Barium sulfate
- Chemically inert and dense, often considered where chemical resistance matters.
- Platy minerals
- Can contribute to barrier properties through their particle shape.
- System approach
- Filler choice is evaluated against the requirements of each layer of the system.
Applicable products
BaSO₄
Micronized Barium Sulfate
A dense, chemically inert white filler with low oil absorption, used mainly in coatings.
Micronized gradesNatural Barite
Barite in its natural mineral form, used where density and chemical inertness matter more than fine particle size.
Natural mineralsSpecial Mineral Fillers
Minerals selected for a specific function in a coating or plastic formulation.
Specialty and customCustomized Mineral Compounds
Blends of minerals designed around a customer’s formulation requirements.
Specialty and custom
Technical support
Our technical team can help at each stage of your formulation work.
View technical servicesOther applications
Powder Coatings
Filler selection and particle size for flow, surface appearance, gloss and cost.
Industrial Paints
Mineral fillers for the application and film requirements of industrial paints.
Decorative Paints
Fillers that support opacity, finish and application properties in architectural paints.
Plastics & Polymers
Mineral fillers for plastics and polymer compounds, where particle size and surface compatibility affect processing and properties.
Discuss your Protective Coatings formulation
Tell us about your system and targets. We will propose a filler and help you adjust it.