BRAND-NEW
S P E C I A L O N AC E & O FF RO AD V EHICLES
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eveloped by the Research & Development team of SherwinWilliams India lead by Ajitkumar
© Sherwin-Williams
2K 3C1B Compact High-Performance PU System: Two Component “3 Coats 1 Bake” Paint System Padhi, R&D Technical Manager, the new 2K 3C1B Coating System has demonstrated positive results in the production of ACE (Fig. 1). This system consists on a 2K Epoxy primer, 2K PU colour coat and 2K PU clear coat (Fig. 2). It has a superior performance in terms of gloss and colour retention, mar and
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Figure 2: Scheme of the 2K 3C1B Coating System’s application.
chemical resistance, it has high durability The gloss is over 85 at 20° and over 90 at
production time with 3 bakes in the oven.
60° angle.
Instead, the application is wet on wet with only
The advantages brought by a clear top coat
one bake. Zero to 1 minute flash-off between
are the smooth finish, with an orange peel
primer, colour coat and clear coat means
rated over 6, the excellent appearance in
that the addition of a clear coat layer does
terms of clarity, the reduced risk of damage
not require a process modification. Finally, as
due to the handling, less rework costs and
we keep an eye on the sustainability of the
no colour transfer on field.
processes, this is a lower temperature curing,
“Along with these advantages, there is also
that means energy saving and respect for the
an increase in the throughput. In fact, a 3
planet”, points out Laura Zambrini, Product
coats system would normally lead to a long
Manager Liquid GI EMEAI (Figs. 3 and 4).
© Sherwin-Williams
and excellent exterior performance.
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Sherwin-Williams team in India completed pilot
Figure 3: Total time: Application and curing time (minutes).
© Sherwin-Williams
trials with full customer’s satisfaction in terms of appearance and performance: 2K PU colour coat and 2K PU Clear coat system - Wet on wet application, only 1 bake
© Sherwin-Williams
- Superior performance with 2K Epoxy primer,
- Zero to 1 minute flash-off between primer, colour coat and clear coat - Addition of clear coat layer without process modification - Lower temperature curing technology.
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Figure 1: The new 2K 3C1B Coating System by Sherwin-Williams has demonstrated positive results in the production of ACE.
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For further information: www.sherwin-williams.com
N. 60 - NOVEMBER/DECEMBER 2019 - international PAINT&COATING magazine
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Figure 4: Dry Film Thickness (micron).