- September 2024
At the Lab we developed synergistic surface treatments for enhanced functionality. EXOCOAT™ 143 and EXOCOAT™ AC represent a two-step surface treatment system designed to optimize the performance of aluminum and various other metals. This approach leverages the complementary properties of each coating to achieve superior functionality.
EXOCOAT™ AC: This initial conversion coating utilizes a chromate-free approach based on sol-gel technology. This layer enhances the adhesion of subsequently applied coatings and promotes corrosion resistance by offering a passive barrier against aggressive environments. The specific mechanism of EXOCOAT™ AC involves sol-gel conversion of the metal surface resulting in excellent adhesion and excellent intercoat adhesion to subsequent layers.
EXOCOAT™ 143: Following the conversion coating, EXOCOAT™ 143 serves as a ceramic clearcoat. This layer possesses easy-to-clean properties, due to a low surface energy that minimizes contaminant adhesion.
EXOCOAT™ 143 is made PFAS free, in which the organometallic resin provides water and oil repellent characteristics. This property not only simplifies cleaning and maintenance but can also offer additional benefits like improved stain resistance and reduced susceptibility to fingerprint smudging. EXOCOAT™ 143 may be used as low maintenance anti-graffiti coating to which no tag adheres.
Synergy and Performance: The combined action of EXOCOAT™ AC and EXOCOAT™ 143 provides a powerful surface treatment solution. The conversion coating by EXOCOAT™ AC improves the overall adhesion and corrosion resistance of the metal substrate, while the easy-to-clean properties of EXOCOAT™ 143 offer a user-friendly and aesthetically pleasing surface. This system can be particularly advantageous for applications in demanding environments or where frequent cleaning is necessary.
Material Compatibility: EXOCOAT™ AC and EXOCOAT™ 143 function well on aluminum and a variety of other metals. For optimal performance, it’s always recommended to technical team to check the compatibility for specific application and desired metals.
EXOCOAT™ AC and EXOCOAT™ 143 are both applied as thin layers (total DFT 10-15 micron) and give good corrosion protection properties with up to 3000hrs neutral salt spray resistance. Both products can be cured at room temperature with moisture from the air or can be baked at elevated temperatures, 90 to 150oC.
