Arkema (Colombes, France) announced that its Kynar Aquatic PVDF latex resin-based coatings now meet SSPC Paint 47, a recent standard for field-applied fluoropolymer topcoats, particularly for bright and saturated colors. In so doing, specifiers of both protective and architectural restoration coatings systems can specify these field-applied coatings in accordance with the SSPC standard.
Kynar Aquatic PVDF latex is used by paint formulators to make premium weatherable water-based coatings that provide the durability and performance of traditional resin-based coatings. This latex-formulated coating can be applied to a variety of substrates, including metals, plastics, wood, concrete, textiles, and even some previously painted surfaces.
The Kynar Aquatic PVDF latex offers extreme weatherability in an aqueous low-VOC, field or factory applied, ambient air-dry system. Additional benefits include resistance to dirt pick-up, water repellency, and high initial and long-term Total Solar Reflectance and Emissivity.
Originally published in December 2020, SSPC Paint 47 was designed to address a need from specifiers for a standard addressing field-applied fluoropolymer topcoats, particularly for bright and saturated colors. A key challenge for the new standard was to identify a set of accelerated weathering test conditions that would allow for the reliable qualification of fluoropolymer topcoat formulations much faster than the standard outdoor service life period of 10-50 years.
The SSPC C.1.8 committee identified accelerated test conditions that accurately differentiate, in six months, between high weatherability fluoropolymer formulations, and conventional SSPC Paint 36 and MPI 311 formulations. They used the same performance criteria specified in the AAMA 2605 standard after a 10 year Florida exposure, a gloss retention >50%, color retention Delta E of < 5 units, and a chalk rating ≥ 8 (≥ 6 for whites). Below is a table comparing popular North American standards for weatherable topcoats and finishes.
“Architects can now specify high performance, field-applied fluoropolymer coatings for superior color and gloss retention with the same confidence as factory-applied coatings,” says David Stutzman, specifier at Conspectus, Inc. “It’s easy—just reference SSPC Paint 47.”
Copies of the new standard are available in the AMPP Store via this link.
Source: Arkema, www.arkema.com.