Coatings World - May 2010

higher costs of raw materials over traditional products.

“Other additive options include newer
developments in harder and tougher wax
alloys that combine excellent scratch and
mar resistance with gloss reduction,”
Edgar continued. “The wax alloy type
products, as with BYK’s Ceraflour 928
and 988, are micronized amide modified
polythylene waxes capable of superior
mar and abrasion resistance in both
waterborne UV and solventborne 100%
solids UV cure applications.”
Scratch and mar resistance for auto-
motive clear coats also continues to be
an important area of technology devel-
opment within UV/EB coatings. “With
the increased interest in the use of
waterborne UV in coatings application,
the need for efficient dewatering and
evaporation of water from the coating is
very important,” said Tina Snider, mar-
ket development manager, resins,
BASF North America. “Eco-friendly
solutions include changes to equipment
such as light sources for light emitting
diode (LED). This requires fine tuning
of molecules to meet the limitations of
such systems, including molecules that
lead to less odor and generate less
migratory species.”
According to Snider, BASF is investing
in core pigment, dispersant and photoini-
tiator technologies to help customers
achieve performance and sustainability
objectives in several areas, including spe-
cial pigments for heat and light manage-
ment and vacuum metalized pigments
that produce brilliant new color effects;
photoinitiator-bound resins for hot melt
adhesives that are compliant with EPA
guidelines and help deliver higher per-
formance without sacrificing cost; light
stabilizers for waterborne UV coatings;
waterborne dispersants and resins that
are more efficient in delivering both
functionality and beauty for UV/EB coat-
ings and inks; and lastly, waterborne UV
coatings and resins with additives and
photoinitiators for improved adhesion
and outdoor durability.

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