Tnemec Company, Inc. has intro- duced a single component, mas- tic waterborne acrylic coating
for use on minimally prepared sound
rusted steel and previously coated surfaces in a wide range of environments.
Series 118 Uni-Bond Mastic is an excellent rust-inhibitive tie coat that can be
used with acrylic and solventborne urethane and fluoropolymer finish coats,
according to Cory Brown, vice president of technical services.
“With Series 118, it is possible to
apply six to eight mils dry film thick-
ness (DFT) per coat,” Brown explained.
“Although it offers a fairly high standing
viscosity, Series 118 sprays on easily with
dry-fall characteristics that reduce the po-
tential for overspray issues on buildings
and surrounding property.”
Series 118 has been specified as an
overcoat for steel water tanks, vessels and
other industrial and architectural metal
substrates. Surface preparation consists
of power washing steel at 5,000 psi and
some mechanical hand or power tool
cleaning to remove loose rust, scale and
deteriorated coatings to obtain a sound
surface for coating.
In addition to its strong adhesion
properties, Series 118 offers 200 percent
elasticity for excellent flexibility and impact resistance. “The coating has excellent elongation, enabling it to expand and
contract with the substrate as the temperature varies,” Brown reported.
In Cortland, Illinois, Series 118 was
specified for the exterior of an elevated
municipal water storage tank where a
limited budget prevented the owner from
abrasive blasting exterior steel. “After a
severe winter of freeze-thaw conditions,
the coating system maintained its original
appearance,” Brown observed.
Similar results were reported at the
University of South Dakota, where Series
118 was spray-applied to all exterior gal-
vanized metal on the school’s Old Main
Building. During this project, Uni-Bond
Mastic was topcoated with Series 1028
Enduratone, a waterborne acrylic poly-
mer that provides extended color and
gloss retention.
“By offering a coating like Uni-Bond
Mastic alongside a topcoat with excellent UV-resistance, like Series 1070
Fluoronar, project teams are able to apply
a long-term exterior coating system from
a single-source provider,” Brown added.
“Tnemec looks forward to providing our
customers with this innovative system in
overcoating situations.”
New Architectural-Grade
RAL Products Join Axalta’s
Powder Coating Portfolio
Axalta Coating Systems recently introduced two new options in the AR300
RAL color palette used in its Alesta powder coatings. These additions offer the
powder coating industry even more premium colors that combine excellent color
retention and weatherability.
“The release of RAL 1035 - Pearl Beige
and RAL 1036 - Pearl Gold expands our
RAL offerings and is an example of our
desire to continually expand our powder
coating offerings for our customers,” ex-
plained Craig Dietz, Axalta product man-
ager. “Our customers require attractive
and durable powder coatings in a variety
of hues and we intend to provide them
just that.”
RAL 1035 and 1036 deliver a smooth,
glossy coverage with excellent abrasion
and corrosion resistance. These RAL
colors are TGIC–free and contain virtu-
ally no volatile organic compounds or
targeted hazardous air pollutants, mak-
ing them a sustainable, environmentally
responsible solution.
All of Axalta’s RAL powder coatings
meet the stringent American Architectural
Manufacturers Association’s 2603 stan-
dards and are designed to lower energy
consumption, increase productivity, and
reduce costs to the coater. Improved
storage stability, coverage and transfer
efficiency create uniform coverage on
parts and make it easier to fill in scratches
and reduce excessive thickness.
PPG Introduces
VELVECRON SR Stain-
Resistant Clear Coat
PPG has introduced VELVECRON SR
(stain-resistant) coating, the first coating
successfully engineered to prevent staining of white and light-colored consumer
and mobile electronic devices such as tablets, smartphones and e-readers.
Based on proprietary PPG resin and
pigment technologies, Velvecron SR
coating is a clear, two-component urethane topcoat designed for application
to primed white plastic and mixed metal
substrates. It offers exceptional resistance
to staining caused by daily exposure to
foods, oils, liquids and lotions, while imparting a luxurious velvety feel to mobile
device housings and keypads.
Velvecron SR coating has been successfully trialed by a well-known global
consumer electronics manufacturer and
will be highlighted in a major device
rollout by the company in 2016 focusing on the product’s white color. The
coating exceeds industry benchmarks
for durability and stain resistance, and
it can be sprayed over white basecoats
at thicknesses of 20 to 25 microns –
less than half the film-build needed
with conventional soft-touch coatings,
PPG reported.
Velvecron SR coating also is more
flexible than hard ultraviolet-cure (
UV-cure) coatings, so devices protected by
the material withstand harsh drop tests
more effectively than do those finished
with competing materials.
As a stain-resistant clear coat, the
technology featured in Velvecron SR
coating has potential for broad application in markets such as athletic equipment, appliances, automotive parts and
accessories, game consoles, furniture, and
display products.CW
Tnemec Introduces a
Series 118 Uni-Bond Mastic
