Green bio-based coalescing additives in latex paint formulations
April 22nd is Earth Day and an opportunity to bring closer such a necessary topic as sustainability also in the water-based paint industry. While the transition from solvent-based paints to water-based paints is an obvious and undoubtedly necessary topic, the choice of bio-based raw materials for water-based paints and replacing the existing fossil-based raw materials raises…
Leveling test procedure ASTM D4062. What it is and how to use it?
Water-soluble paints based on winyl-acrylic, styrene-acrylic or pure acrylic emulsions contain thickeners in their formulations ensuring appropriate rheological properties at low, medium and high shear rates. Setting the ideal viscosity to ensure no sagging, Stormer-viscosity and ICI-viscosity requires a balancing of different rheological additives and dosages. Often, with selected rheological properties allowing for good application, no…
Formulating of latex paints using the relationship between PVC and CPVC
The formulation of latex paints, as well as paints in general, requires extensive knowledge of the basics of the raw material composition of paints, the raw material base and the amounts of use of individual raw materials. While the number of recommended dosages can be determined at the beginning from the doses oscillating in the ranges…
Effectiveness of thickeners in preventing sagging
Latex paint formulations for architectural applications are intended for the manufacture of DIY paints and for applications by professional painters who apply them with a brush, paint rollers and various spraying techniques. During their application, most substrates are placed on vertical surfaces, such as walls, furniture fronts or fences. Application to such surfaces carries the risk…
Settling in latex paints and slurries. Causes and elimination by anti-settling additives
Gravity pulls us and objects to the ground, but also pulls down particles of dispersed pigments and fillers, creating a deposit which over time can be very difficult or impossible to mix and distribute again in the paint. This phenomenon is also present in water-borne paints based on acrylic polymer dispersions, and in this article we…
Development of hardness of acrylic WB paints by coalescing agents
The hardness parameter is usually associated with floor paints, parquet varnishes and other coatings that require high resistance to deformation under the pressure exerted on them by harder objects. However, hardness as a strength parameter also applies to coatings in other applications and is an indicator of how the coating acquires its parameters, and the development…
How to use start point formulations of architectural latex paints
Start point formulations is an inseparable document supplied with raw material samples and other technical materials, which allows both newcomers and the more experienced formulators to see how a given raw material can be used. Of course, it is good if the start point formulation in addition to the list of raw materials and their quantity…
Chemical resistance of decorative wood and architectural water-borne coatings
Chemical resistance is commonly associated with industrial coatings for tanks, floors onto which oil or gasoline may spill, or other places that are exposed to constant or intermittent contact with chemicals. With regard to waterborne decorative wall paints or wood coatings, chemical resistance is generally not expected, not to say that a certain group of chemicals…
Increasing sheen and gloss of latex paint coatings by wet rubbing
The requirement to easily remove stains from latex wall paints is nowadays an increasingly common standard in paint formulations not only of the premium class, but also of the higher-end random paints. Raw materials such as polymer dispersion, thickeners, surfactants, specially added additives, fillers, pigment volume concentration, etc., are responsible for the easy removal of stains.…
The importance of the scrub resistance test ISO 11998 in the European market
In Europe, it has been a standard for many years to determine the wet scrub resistance of latex paint coatings using the ISO 11998 method and to classify the test results in accordance with EN 13300. But what is this test and how does it affect the quality of wall paints? The prepared article discusses the…
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Waterborne Paint Formulations Blog 