New energy-curable coil coatings
PPG recently announced the launch of the “Duranext” portfolio of electron-beam (EB) and ultraviolet (UV) curable backers, primers, basecoats and clearcoats that brings the energy efficiency and high speed of energy curing to metal coil coaters.
Unlike traditional coil coating systems that require very high temperatures to drive the curing process, the newly released coatings use an electron beam or ultra-violet energy to convert a liquid coating into a fully cured solid finish in seconds, without any significant loss of thickness or weight.“
As an early pioneer of energy-curable coatings for wood, PPG leveraged 30 years of expertise to develop these state-of-the-art technologies for interior and exterior metal building product applications,” said Irene Tasi, PPG senior vice president, Industrial Coatings.
Energy efficient coil coatings
“Developing UV-and EB-curable coatings for pre-painted metal is a remarkable advancement in energy curing technologies and illustrates PPG’s commitment to innovation and more sustainable manufacturing across the industries that we serve.” The new solutions are engineered for lasting durability and offer according to the provider:
- Reduced energy usage, water consumption and CO2-emissions, compared to traditional thermal cure coatings.
- Formulations made without solvents that release volatile organic compounds (VOCs).
- Faster finishing with curing in less than one second without using heat.
- Application with multiple methods, including roll-, curtain- and slot-die-coating
- Solutions that can be customized to meet most requirements for weatherability, durability, chemical resistance and flexibility.
Complete portfolio of coil coatings
The “Duranext” portfolio includes backers, primers, basecoats and clearcoats. The Backers are available in both UV and EB formulations to accommodate various application equipment setups. These can be applied over a primer or used as a direct-to-metal application. The Primers are available in UV-curable formulations. UV primer can be used under an EB topcoat or with a conventional thermal cure topcoat.
These primers could also be used in conjunction with a wet-on-wet applied topcoat and cured with EB in a single pass. Customers have access to a wide variety of basecoats with full range of glosses and colours for both interior and exterior applications and with options that include smooth, textured and wrinkled finishes. These can also be formulated as a one-coat direct-to-metal solution. The Clearcoats were engineered to preserve digitally printed inks with a protective layer that adds weatherability and scratch- and abrasion-resistance for residential and commercial applications.
More information: PPG, Texas-US. Chris Meier, Tel. +1 940 268-6930, chris.meier@ppg.com, www.ppgindustrialcoatings.com