Finishing - January-February 2020

12 RESIN
Energy solution
Axalta has added Voltatex 4224 to its
Energy Solutions portfolio last year. After
12 months of global use in a variety of
industrial applications, Axalta’s feedback on
Voltatex 4224 from its customers has been
outstanding.
"Using Voltatex 4224 at Siemens has led to
a significant reduction in the operating
temperature of water-cooled motors. This lowemission
impregnating resin is just as easy to
apply as conventional impregnating agents,”
said Thomas Werbinek, Head of R&D
Servomotors, Siemens, Bad Neustadt,
Germany.
Michael Glomp, Axalta's global vice
president for Energy Solutions, explains the
benefits of the lower operating temperatures,
"Voltatex 4224 improves the heat transfer
from the copper winding to the steel core.
This leads to less thermal stress in a motors’
components, reducing the operating
temperature by up to 30˚C or the size of the
motor by more than 15%. And the design of
smaller and more efficient motors leads to a
reduction in the use of metal resources, which
is very much in line with Axalta’s
environmental sustainability goals."
Joachim Klötgen, head of automatic
impregnation systems, Meier Prozesstechnik,
Bocholt, Germany, says, "When using Voltatex
4224, Meier Prozesstechnik has shown that it
can be applied using conventional
impregnation technologies such as trickling,
dipping and rolling. It is therefore possible to
use the same system technology without
incurring any problems.”
Voltatex 4224 at a glance
Available globally, this low-emission
impregnating resin allows for the design of
smaller and more efficient motors, and for the
significant reduction of the operating
temperatures of standard design motors.
Compared to most standard impregnating
resins, Voltatex 4224 has a thermal
conductivity that is more than double - 0.5 to
1.2 W/mK. In addition, Voltatex 4224 is
manufactured using renewable raw materials.
Voltatex 4224 is available in three viscosity
adjustments – low, medium and high - and it
can be applied using conventional
impregnation technologies such as trickling,
dripping and rolling. It is a styrene- and vinyl
toluene-free impregnating resin, which means
that emissions are reduced to a minimum in
order to create a better working environment
and limit flammability as well as emissions
exposure.
Prestigious award
In November 2019, Axalta received the
R&D 100 Award for Voltatex 4224. Since
1963, the R&D 100 Awards programme has
identified and celebrated the top 100
revolutionary technologies of each year. These
ground-breaking products, technologies and
services will make a difference in a wide range
of industries and together represent a bright
future for science and innovation in the years
to come.
Finishing - January/February 2020