Coatings World - December 2010

For the past few years, the paint and
coatings industry has been moving
more of their products in the direction
of low VOC and one-VOC products.
“This industry trend has increased the
need for biocides,” said Druga. “Today,
ISP offers a full portfolio of wet state
Nuosept and dry-state Fungitrol prod-
ucts to meet our customer’s water-
based product demand.”
According to Magri, the need for low
and zero VOC coatings affect the bio-
cides market in three ways. “The first
and more obvious one is the need for
low- and zero-VOC biocides,” he said.
“Solutions for this may be straightfor-
ward for some actives, but very chal-
lenging for certain multi-active formula-
tions. To address this need, Dow
Microbial control has developed several
water-based formulations. Additionally,
we have created the unique LE technol-
ogy, which addresses viscosity issues of
water-based dispersions with virtually
no addition to VOC.”
The second issue is that low- and zero-
VOC coatings are more susceptible to
microbial contamination, according to
Magri. “Therefore, the selection of a suit-
able biocide is not straightforward and
needs extensive testing,” Magri said.
“There is no ‘one fits all’ solution. Dow
Microbial Control has nine Customer
Application Centers worldwide, fully
equipped to test and optimize the selec-
tion of biocides for our customers, and a
very wide product portfolio to match any
preservative needs.
Thirdly, it is crucial to have good
plant hygiene in the manufacturing
of low- and zero-VOC coatings. “Our
Customer Applications Centers are
staffed with technical experts who
help our customers improve their
plant hygiene to improve microbial
control our trouble-shoot contamina-
tion,” said Magri.
NEW FORMULATIONS
Biocides manufacturers have been
developing products that meet their
customers’ needs and at the same time
meets environmental regulations.

Arch has made several additions to
its Proxel BZ Plus Preservatives in-
can range during the last two years.
“This unique combination of Proxel
preservatives and Omadine antimi-
crobrials offers a dual mode of action
for inhibiting microbial growth in
latex emulsions, water-based paints,
adhesives and pigment dispersions,
preventing discoloration and provid-
ing the extra protection our customers
request against mold, mildew and
bacteria,” said Tierney. “Our latest
endeavor involves formulating inno-
vative dry-film combinations together
with our partner Syngenta.”
ISP in EMEA has launched several
innovative products. Nuosept BIC, a
novel solution for formaldehyde-free in-
can preservation and Fungitrol IP24, a
fungicidal protection for dry-boards.
Since regulations differ among
regions, Dow Microbial Control is con-
stantly working to develop new for-
mulations to address regional
requirements. Following restrictions
on Carbendazim, Cybutryn and
Terbutryn in Europe, Dow Microbial
Control developed Rocima 350, a dry-
film preservative based on a patented,
synergistic combination of DCOIT
and IPBC. The product offers long-
term protection, has very broad spec-
trum against fungi, algae and bacte-
ria, and is VOC-free. Additionally, we
are launching Bioban 358 for those
customers who have issues with IPBC
and welcome an additional algaecide
in the formulation. Both products are
free of negative labeling at recom-
mended dosages.
In North America, Rocima 200 was
launched to fulfill a need for a broad
spectrum, long-lasting dry film pre-
servative free of VOC and APEO.
Rocima 368 was recently launched in
Japan as a VOC-free version of the
well-proven Rocima 363. Bioban 518
S and Bioban 551 S are being
launched in Australia, New Zealand
and in some other countries follow-
ing restrictions on CMIT for in-can
preservation. CW

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