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 theContinue reading “Effectiveness of thickeners in preventing sagging”

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 articleContinue reading “Settling in latex paints and slurries. Causes and elimination by anti-settling additives”

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 theContinue reading “Development of hardness of acrylic WB paints by coalescing agents”

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 theirContinue reading “How to use start point formulations of architectural latex paints”

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 ofContinue reading “Chemical resistance of decorative wood and architectural water-borne coatings”

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 ofContinue reading “Increasing sheen and gloss of latex paint coatings by wet rubbing”

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 discussesContinue reading “The importance of the scrub resistance test ISO 11998 in the European market”

The importance of the specific resistance of titanium dioxide pigments in latex paint formulations

Titanium dioxide as a pigment used in latex paints is subjected to a surface treatment, both in the production in the chloride and sulphate process. The surface treatment is used in the rutile form and the anatase form is devoid of surface treatment. The type of surface treatment used has a great influence on theContinue reading “The importance of the specific resistance of titanium dioxide pigments in latex paint formulations”

What is the MFFT and how is it determined?

Water-borne paints based on dispersions of styrene-acrylic copolymers, pure acrylic copolymers, copolymers of vinyl acetate-ethylene (VAE) or with VeoVa, versatic and other monomers used in one-component architectural paints, direct-to-metal or wood, dry by evaporation of water and other volatile components and the coalescence of polymer particles , i.e. their sticking together. This process takes placeContinue reading “What is the MFFT and how is it determined?”

Viscosity measurements of latex paints in the area of high shear rates (ICI-viscosity)

Viscosity measurements with a Brookfield or Stormer viscometer are standard in R&D and QC of latex paints. However, they only cover a part of the shear area (low shear and mid shear) to which the paints are handled. The area responsible for the rheological behavior of the paint when painting with a brush, roller orContinue reading “Viscosity measurements of latex paints in the area of high shear rates (ICI-viscosity)”