© Anton Paar GmbH
Measuring instruments from Anton Paar.
HIGHLIGHT OF THE MONTH
How to Develop the Best Paints and Coatings and Control Their Quality Timothy Aschl, Olivia Kettner, Bernhard Scheicher and Martin Thomas Anton Paar GmbH – Graz, Austria
info.de@anton-paar.com
Considerable demands are placed on paints and coatings simply by all the different applications and situations they are used for. The high degree of complexity is also a result of the many different materials that are processed – an enormous variety of powders/particulates and liquids. It is necessary to precisely understand the materials to be able to develop new formulations, but also during production to guarantee a consistently high quality.
T
o cover and understand the whole life
and coatings exist in both states and have
processing is needed to guarantee the reliable
cycle of paints and coatings means
therefore completely different requirements
and homogeneous quality of the final products
to be able to measure and analyse
as they are also applied and used completely
(the paints and coatings). No matter whether
the right properties at any step – from the
differently. The measuring instruments from
in development or production, there are many
incoming raw materials, across all intermediary
Anton Paar make it possible to get to grips with
factors and parameters that influence the
steps like mixing, to the final and finished
this complexity by measuring the properties
manufacturing and application process which
product. But the life cycle doesn’t stop with
needed to ensure high quality products.
can be addressed:
the finished paint or coating – transportation,
Important sample properties regarding the
• Viscosity: measurement of the viscosity
long-term storage and the applicability are
life cycle of the paint or coating are shown in
of paints and coatings ensures consistency
central points, as well as durability and
Figure 1. The development of new products
of incoming raw materials and provides
scratch resistance of the applied materials.
necessitates understanding and predicting
information on processability and pumpability.
Another dimension of complexity comes
the behaviour during the manufacturing as
• Rheology: determination of viscoelastic
from the state the materials are in – liquid
well as the application process. Similarly, in
properties in order to follow changes in paints
or dry. Raw materials as well as final paints
quality control a consistent production and
and coatings to understand their deformation,
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N. 65 - SEPTEMBER/OCTOBER 2020 - international PAINT&COATING magazine