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CURRENT ISSUE

MARCH 2018

PUBLICATION DATE

March 15, 2018

Content

Editor’s Note

A Century of Innovation

— Prof. Long Lin

I was particularly fascinated by the drone spray application of surface treatments for high rise buildings and structures, presented by Aspira Aerial Applications. What a wonderful innovation, which clearly has many potential applications! My fascination was due to the simplicity of the concept that underpinned the innovation. As readers know, drone technology has been around for a significant number of years. High cost of maintenance for the exterior surface of high-rise buildings and structures (such as lighthouse) has also been known to industry for many years. However, it was an ingenious lateral thinking that linked the drone technology and surface treatment/surface coating applications.

 

Market Watch

R&D Drives Innovation

We were honour to have the opportunity to visit BYK, DSM and Lubrizol during CHINACOAT Shanghai 2017 who shared with us their views of the market development.

 

Innovative Coatings & Technology Trends

New Advances in Hybrid Technology for Floor Coatings

— Hugo De Notta, PhD, Multiquimica S.A., Spain

By marrying reactive surfactant technology with solvent-free waterborne hybrid resin technology, coating formulations of which total VOC is less than 50 g/L can be developed. Urethane-acrylic hybrid polymer dispersions (HPDs) can offer cost/performance advantages over common 1K coating materials such as PUDs, acrylic emulsions, and blends thereof.

 

Protective Coatings

Two-component & One-component Waterbased Zinc Rich Paints with Exceptional Corrosion Resistance

— Kenichi Nakamura, Roval, Japan; Pascal Verbiest, Ph.D, EverZinc, Belgium

A two-component waterbased zinc-rich paint (2K WB ZRP) was developed, based on a polyurethane resin, with a zinc content of 95% in the dry film. This zinc-rich waterbased paint has a VOC of 38g/l which is considerably lower than the VOC of current solvent based zinc-rich paint systems (varying between 300~600 g/l). Corrosion tests, mechanical tests and chemical tests of this waterbased paint reveal its excellent behaviour versus conventional solvent based zinc-rich paints and versus hot dip galvanizing systems.

 

Dirt Resistant Coatings

Developments in Super Dirt Pickup Resistant Coatings

— Lawrence Schnieders, Lubrizol Advanced Materials, Inc., USA

Dirt pickup resistance of masonry coatings is important due to the impact it has on the aesthetics of the structure. Structures that resist dirt pickup for longer periods of time retain their aesthetic appeal and require less-frequent repainting. Reducing the frequency of repainting can significantly lower the maintenance cost of the structure.

 

Smart Coatings

Improving Indoor Air Quality Using a Biosilica-based Functional Paint & Coatings Photocatalyst (Part 1)

— Nicholas Day, PhD, Joshua Olsen, Joseph Thiebes, Adrian Polliack, PhD, Diatomix Inc., USA

Diatomix Inc. has developed a patent pending, biosilica-based photocatalyst that actively and continuously improves indoor air quality when added to wall paint and floor coatings. By removing VOCs, the technology can help curb the discomfort associated with allergic symptoms and diseases. This paper presents findings from experimental work done to develop this filler technology.

 

Regular Column

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