BRAND-NEW
Evonik and SI Coatings Develop Water-based Primer for Polyamide Coatings Evonik Industries and SI Coatings have developed a water-based primer for the pretreatment of steel prior to coating in the fluidized-bed process with VESTOSINT polyamide 12 powder.
E
vonik – manufacturer of polyamide 12 compounds, which are
and can be applied by brushing, spraying, dipping or doctoring and
in high demand in the automotive, oil and gas, medical and
baked at about 300 °C during heating for the fluidized bed process
sports sectors – and SI Coatings – specialist in the production
with VESTOSINT.
of technical, functional and decorative coatings as well as adhesion
One possible application is cardan shafts, which are coated on both
promoters for a wide range of applications – have joined forced to
the outside and the inside.
develop a new water-based primer for the pretreatment of steel prior
“Evonik has firmly anchored the idea of environmental compatibility
to coating in the fluidized-bed process with VESTOSINT® polyamide 12
in its corporate strategy. Therefore, for the processing of VESTOSINT
powder.
we were looking for a partner with whom we could develop a water-
Until recently, large-area steel parts, especially concave surfaces, were
based primer that is precisely matched to our polyamide powder. We
pretreated with solvent-containing primers when exceptional adhesion
found this partner in SI Coatings,” says Dr. Dominic Störkle, head of the
was required, for example, in contact with water.
Additive Manufacturing & Material Solutions product line at Evonik.
The new primer Si Coatings 100011-00L with water hazard class WGK1
“Since we are a globally active company, we can offer the jointly
does not require any special work protection technology such as fume
developed primer to Evonik customers worldwide and also in small
hoods.
quantities,” says Managing Director Andreas Kunz of SI Coatings,
The product is label-free according to the Globally Harmonized System
emphasizing the advantage of the partnership.
of Classification and Labeling of Chemicals (GHS). The residual solvent content, reported as volatile organic compounds (VOCs), is less than
For further information: www.evonik.com and
2%. The primer has a shelf life of six months when stored frost-free
www.huehoco.com/en/company/si-coatings
© SI Coatings
20
N. 70 - JULY/AUGUST 2021 - international PAINT&COATING magazine
