Canadian Finishing & Coatings Manufacturing Magazine November/December 2021 - 38

PAINT AND COATINGS MANUFACTURING: HEAVY DUTY POWDER COATINGS
" Machines and equipment that work in farmers' fields, in rock
quarries, or for use in construction will demand every bit of
durability that can be had from a coating. "
For this reason, coatings sold into this industry are prized
for their durability - their ability to adhere to the metal surface
and their exterior lightfastness are extremely important. For the
most part, fully exterior polyesters with excellent adhesion and
flexibility are the most used types of powders. Super-durable
polyesters are commonly applied due to their outstanding
weather resistance.
Axalta's range of coating systems for agriculture, construction
and earthmoving equipment (ACE) customers includes
electrocoat, dip, spray, and powder coatings.
Its powder coating offering, " Alesta, offers superior corrosion
protection while maintaining the vibrant aesthetics of major
OEM brands " on everything from crop harvesting machinery to
bulldozers for construction sites.
Alesta Lync, Axalta adds, is a Dry-on-Dry (DOD) powder
coating application system. The process is energy-efficient and
has excellent edge corrosion protection. With its unique topcoat
and primer combination, Alesta Lync is designed to provide two
paint layers, but requires only one cure cycle. This results in a
reduction of process time and capital investment and an increase
in productivity. This product offers paint shops the additional
benefit of minimal carbon output.
Alesta Lync has been engineered initially for ACE segment
coaters, but is suitable for many other general
industrial
applications, Axalta adds. Coaters using direct to metal systems
today can get better edge coverage and corrosion resistance with
Alesta Lync without having to add an additional oven to gel cure
a primer.
Axalta recommends its Abcite thermoplastic powder coatings
- based on the same polymer used for the hard outer surface
of golf balls - for commercial furniture such as park benches,
playground equipment and trash receptacles. Abcite powder
coatings are specifically formulated as a tough, chip-resistant
finish providing corrosion and UV protection without the need
for a primer, the company adds.
At Fabtech in Chicago in September, PPG displayed its latest
in tough powder coatings.
Among the featured powder innovations was PPG Envirocron
Extreme Protection Edge coating, PPG Envirocron High Transfer
Efficiency (HTE) coating and PPG Coraflon Platinum coating, a
new fluoropolymer powder coating for architectural extrusions
and sheet aluminum.
PPG Envirocron Extreme Protection Edge coating delivers
protection on sharp, hard-to-coat edges with just one coat and
presents a higher first-pass transfer efficiency and reduced
powder usage, the company says. The coating requires no primer,
and applicators do not need to modify their existing coatings
lines or add equipment to use this new solution. Applicators also
can save capital costs by avoiding the need to finish edges with
mechanical edge rounding or blasting equipment. Longer term,
PPG Envirocron Extreme Protection Edge powder coatings have
the potential to reduce warranty claims and improve resale value
by extending the product lifecycle, PPG says.
" Combining uniform edge coverage and exceptional corrosion
protection in a primerless, one-coat system is a challenge that
coatings manufacturers have been facing for many years, "
says Shelley Verdun, PPG Global Product Manager, Powder
Coatings. " PPG Envirocron Extreme Protection Edge powder
coatings are the first one-coat product to successfully unite
these characteristics, offering customers a range of benefits and
benchmark performance that cannot be replicated by any other
coating on the market. "
PPG says the new powder coatings add " industry-changing
performance " to the company's existing polyester powder
coatings technology. They are available in a range of standard and
custom-matched colors, including mica and metallics, and can be
applied using manual and automatic powder coating systems.
Axalta's Alesta offers corrosion
protection while maintaining
the vibrant aesthetics of major
OEM brands.
38
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Canadian Finishing & Coatings Manufacturing Magazine November/December 2021

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