EXOCOAT™ AC
Product features
Designed to meet the needs of demanding industries and environments
Key application areas
EXOCOAT™ AC
EXOCOAT™ AC delivers advanced, chromium-free corrosion protection for aluminum and demanding alloys, meeting the highest aerospace standards. Its direct-to-metal application ensures excellent adhesion and long-lasting durability, even in the harshest environments. The environmentally sound formula provides 500 hours of salt spray resistance direct-to-metal and up to 3000 hours in coating systems. Trusted by industry leaders worldwide, EXOCOAT™ AC is the safe and sustainable choice for high-performance surface protection. Experience the next generation of metal protection with EXOCOAT™ AC.
EXOCOAT™ AC
EXOCOAT™ AC delivers advanced, chromium-free corrosion protection for aluminum and demanding alloys, meeting the highest aerospace standards. Its direct-to-metal application ensures excellent adhesion and long-lasting durability, even in the harshest environments. The environmentally sound formula provides 500 hours of salt spray resistance direct-to-metal and up to 3000 hours in coating systems. Trusted by industry leaders worldwide, EXOCOAT™ AC is the safe and sustainable choice for high-performance surface protection. Experience the next generation of metal protection with EXOCOAT™ AC.
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Everything you need to know about EXOCOAT™ AC
What is EXOCOAT™ AC?
EXOCOAT™ AC is a hybrid sol-gel, chromium-free conversion coating designed for high-performance corrosion protection of aluminum and demanding alloys. It is compliant with aerospace standards and provides a safe, environmentally sound alternative to traditional chromium-based systems.
Is EXOCOAT™ AC an end product or a formulation component?
EXOCOAT™ AC is primarily an end product, intended to be applied directly to metal substrates as a conversion coating or as a micrometer-thin primer under conventional organic coatings. Formulations with curing agents can be made, please contact us for more information.
What are the main benefits and features?
Chromium-free corrosion protection; Direct-to-metal application with excellent adhesion; 500 hours salt spray resistance (NSS) direct-to-metal; Up to 3000 hours salt spray resistance in a coating system; Suitable for all aluminum grades, including 2024 and 7000 series; Aerospace compliant; Environmentally sound and safe to handle; Hydrophobic surface (water contact angle ≈ 90°); 4–5H pencil hardness; Good overcoatability with epoxies and polyurethane topcoats.
On what substrates can EXOCOAT™ AC be applied?
It is designed for aluminum (including 2024 and 7075 series), stainless steel, galvanized steel, phosphated steel, and iron alloys. It is especially suited for demanding environments and industries such as aerospace and automotive.
How is EXOCOAT™ AC applied?
By spray (conventional low-pressure, high-pressure airless, or airmix); Dipping, rolling, or brushing for small parts or complex geometries; For best results, apply direct-to-metal and overcoat with epoxy or polyurethane systems if required.
What pretreatment is required?
Common pretreatments, such as alkaline wash and acid etching are recommended.
What are the recommended curing and drying conditions?
As 1K: Force cure at 90°C for 1 hour; As 2K: Mix 75 parts EXOCOAT™ AC with 25 parts APTES by volume; pot life is 3 hours; Room temperature cure: Surface dry 15–30 minutes; Touch dry (overcoatable) 30–60 minutes; Hard dry 3–4 hours.
What is the typical film thickness?
EXOCOAT™ AC is designed for micrometer-thin films. Typical dry film thickness is less than 10 µm for conversion coating applications.
What is the shelf life and storage advice?
Shelf life: 12 months (unopened, original container, 5–25°C, dark conditions); Store in a cool, dry place, tightly sealed, away from direct sunlight and ignition sources.
Is EXOCOAT™ AC safe and compliant?
Chromium-free (no Cr6+ or Cr3+); Compliant with RoHS and REACH; Classified as flammable and corrosive: H225, H314, H317, H412; Use appropriate PPE: chemical-resistant gloves, eye protection, and good ventilation.