Architectural Coatings

With regulations aimed at decreasing VOCs and the development of new waterborne polymer systems and other technologies to meet these regulations, obtaining the combination of desired properties for specific applications and formulations has become even more challenging and complex. Evonik Coating Additives can help obtain these properties. 

In today's environmentally conscious marketplace, formulators are challenged to be sensitive to the potentially negative environmental impacts of their systems. As global trends and regulations move away from many traditional materials, formulators are looking to transition to more environmentally friendly systems. Formulators are also challenged with reducing or even eliminating VOCs from their architectural systems. 

WHITEPAPER: 7 CHALLENGES IN ARCHITECTURAL COATINGS AND HOW TO SOLVE THEM

The demands placed on long-lasting interior and exterior architectural coatings is increasing. To help you keep pace we have identified the 7 biggest challenges facing formulators for architectural paints and coatings and show you how to solve them in our whitepaper.

PVC 0-30% - Product Overview

Low PVC: High-gloss paints with low water vapor permeability. Increased wet scrub resistance due to a high binder content. Mainly used for trim paints in the architectural coatings market. 

PVC 30-60% - Product Overview

Mid PVC: Semi-gloss to matte paints combine the advantages of low and high PVC paints. Average amounts of binder lead to a sub-critical PVC, which is characterized by a medium water vapor permeability and moderate wet scrub resistance.

PVC >60 % - Product Overview

High PVC: Matte paints with an overcritical PVC have a rough and open pored structure, which leads to high water vapor permeability and without modification to high water absorption. High amounts of fillers and pigments leads to excellent dry hiding power compared to glossy coatings. 

Solventborne Paints - Product Overview

Paints should be able to perform well on a variety of different substrates. Although market share of solventborne coatings decreased over several decades, there are certain regional markets and applications (e.g. trim paints) for solventborne paints.  

Searching for the optimal defoamer

Defoamer performance can be affected by a number of complicated formulation and application parameters, which makes selecting the optimal defoamer difficult and time consuming. Selecting the wrong defoamer can lead to defects, problems, and even to coating failure.

Different Defoamer Technologies for Architectural Coatings

Evonik offers a complete portfolio of defoamers and deaerators, from organic oil-based to siloxane-based to our unique molecular defoamers.

Efficient Wetting & Dispersing Additives

Cost reduction and process efficiency are major tasks for modern formulators. Improve the efficiency of your grinding process with grind aids, surfactants, and dispersants from Coating Additives.

Hydrophobing Agents

Treating surfaces – such as exterior walls – with water-repellent materials (or materials otherwise impenetrable to water) is an effective method of protection from weathering. To achieve outstanding hydrophobization, different types of silicone chemistries are used. 

Videos:

Formulating pigment concentrates for architectural coatings

Join our expert as he explains the various technologies for wetting and dispersing additives used to formulate pigment concentrates for architectural coatings.

Hydrophobing agents to protect waterborne exterior paints against water

Join us as we take a look at hydrophobising facade coatings and plasters. The theory of hydrophisation will be explained on the basis of the corresponding chemical features of the respective hydrophobing agents.

How Evonik helps to color your world

Without color life would be bleak and boring. This video gives an overview of what color is and how Evonik helps to color the world with wetting and dispersing additives.

Foam control, Solventborne and UV Systems

What is foam and how to control it? You can find the answers in this video, which is a training for foam control technologies for Solventborne and UV Systems.

Defoamers & deaerators for waterborne coatings 

When dealing with coatings we know there might be no moment without the risk to create foam. All this foam lead in a lot of problems like the loss of weather resistance or corrosion protection. To get rid of that macro and micro foam we need defoamers and dearators.

Combating dirt pick-up on exterior architectural coatings

Natural and man-made elements wreak havoc on exterior architectural coatings; fortunately our Smart Surface Solutions team is working on ways to improve the appearance and performance of these coatings.

SPHERILEX® for Coatings

SPHERILEX® is a precipitated amorphous silica with unique spherical particle shape and very narrow particle size distribution. It offers excellent abrasion resistance and burnish resistance for architectural paints, floor coatings and wood coatings.

Multi-functional additives for smooth coating surfaces 

Christine Louis, Technical Manager for Decorative Coatings at Evonik Coating Additives, discusses trends in the decorative coatings market and how our superwetters meet the expectations of modern additives for decorative coatings. 

Recommended downloads for architectural coatings:

As problems related to pigment dispersions become more frequent and as requirements regarding color reproducibility become increasingly rigorous, new demands for pigment wetting agents and dispersants are required to resolve these pigment stabilization issues. Over the past 20 years, advances in polymeric dispersants have made significant improvements in the process of wetting and stabilizing pigments. As a result, many dispersant technologies that better stabilize small pigment particles and that better prevent flocculation are emerging in the marketplace. This paper will explain pigment and dispersant interfaces and how harmonizing and optimizing these interactions will lead to a better pigment dispersion.