Fast-curing PR-2870 sealant to be available for spray application, longer assembly time
Applications for a chrome-free corrosion-inhibiting aerospace sealant by
PPG (NYSE:PPG) continue to grow as aircraft manufacturers and
maintenance, repair and overhaul shops report the product surpasses
their process and performance expectations. Available in all three
classes, PRC® PR-2870 sealant is becoming the new standard by which
other corrosion-inhibiting sealants are measured.
According to Bill Keller, PPG global market segment manager for
aerospace sealants, customers have commented that PR-2870 sealant hits
key targets they seek in their next-generation fuselage and pressure
sealants.
“It is the right stuff at the right time,” Keller said. “When we asked
customers to name the properties they wanted in their sealants, first
was rapid cure, and light weight was a close second. All PR-2870 sealant
classes cure faster than our previous-generation corrosion-inhibiting
sealant, while Classes A and B weigh as much as 30 percent less by
volume.”
PR-2870 sealant for roller application (Class C) is now available with
48-hour application and assembly time for large, complex aircraft
structures. Like the other Class C grades, it cures 70 percent faster
than traditional interfay sealants at ambient conditions, reducing cycle
time to offer aircraft manufacturers and maintainers the potential for
cost savings.
“PR-2870 Class C sealant provides the long work life and assembly time
required for structural assembly, but then it achieves cure in less than
half the time of older-technology sealants,” Keller said. “This will
radically enhance production line efficiency.”
The proprietary PPG chrome-free corrosion-inhibiting sealant will soon
be available for spray application that will enable coverage of wide
areas for self-leveling fairing over countersunk fasteners and as a
flexible primer under paint in areas such as wheel wheels to protect
against stone chip impact.
Rapid-curing sealants enable customers to seal parts faster and move
them through the process more quickly. Lighter weight sealants also
improve operating efficiencies of aircraft, Keller said.
PPG has qualified PR-2870 sealant in viscosities for application by
brush (Class A), extrusion (Class B) and roller (Class C), with
half-hour and two-hour work times for Classes A and B and 12-hour and
24-hour options as well as a new 48-hour option for Class C. PR-2870
sealant also is qualified to U.S. Military Specification MIL-PRF-81733.
It is supplied in a two-part SEMKIT® package or premixed and frozen
cartridge.
A replacement option for PRO-SEAL™ 870 sealant, PR-2870 sealant uses
PPG-patented technologies to inhibit corrosion on metal in aerodynamic
smoothing, structural surface sealing, fay sealing and pressure fuselage
sealing aircraft applications.
“For more than 50 years, Pro-Seal 870 sealant was the
standard for corrosion-inhibiting aerospace sealants,” Keller said.
“PR-2870 sealant maintains superior corrosion protection in a
chrome-free formulation that complies with European Union REACH
(Registration, Evaluation, Authorization and Restriction of Chemicals)
regulation.”
Visit www.ppgaerospace.com for
more information about PR-2870 sealant and a list of PPG application
support centers through which it can be purchased.
Paris Air Show attendees can learn more about PR-2870 chrome-free
corrosion-inhibiting sealant by visiting Hall 2b Stand C105 and talking
with PPG aerospace sealants experts. The International Paris Air Show is
June 19-25 at Le Bourget.
PPG’s global aerospace business offers coatings, sealants,
transparencies, packaging and application systems, and transparent
armor, as well as chemical management and other services. For more
information, visit www.ppgaerospace.com.
PPG: WE PROTECT AND BEAUTIFY THE WORLD™
At PPG (NYSE:PPG), we work every day to develop and deliver the paints,
coatings and materials that our customers have trusted for more than 130
years. Through dedication and creativity, we solve our customers’
biggest challenges, collaborating closely to find the right path
forward. With headquarters in Pittsburgh, we operate and innovate in
more than 70 countries and reported net sales of $14.8 billion in 2016.
We serve customers in construction, consumer products, industrial and
transportation markets and aftermarkets. To learn more, visit www.ppg.com.
We protect and beautify the world is a trademark and the PPG
Logo is a registered trademark of PPG Industries Ohio, Inc.
Pro-Seal is a trademark and PRC and Semkit are
registered trademarks of PRC-DeSoto International, Inc.
Media Contacts: Audrey FujimotoPPG+1-818-741-1685 audrey.fujimoto@ppg.com www.ppgaerospace.com orJean VerlichJV Communications+1-724-916-4558 jverlich@jvcommunications.com