General Information:

EXOCOAT^TM AC is a sol-gel based anticorrosive conversion coating 60% in ethanol. It is used as replacement for chromium-based primers on aluminium and stainless steel.

Description and Application:

EXOCOAT^TM AC is a hybrid sol-gel that covalently bonds to the surface. It is meant to be applied direct to metal (iron alloy, galvanized steel, phosphated steel, stainless steel and aluminium). It converts metal hydroxide surface into a stable, inert covalently bound monolayer.

The principle is to make the interface inert by the use of EXOCOAT^TM AC, which is not only interesting as direct-metal sol-gel based anti-corrosion coating but can also be used as micrometre-thin primer under conventional organic coatings. EXOCOAT^TM AC can be overcoated by various paints, though fits best with epoxy primer, polyurethane topcoat systems.

EXOCOAT^TM AC may omit the use of toxic chemicals and functions as replacement for Cr³⁺ and Cr⁶⁺ based systems as used in metal plating and aeromotive industries.

Features Direct to Metal:

• >2000hrs QUV resistance

• >1000hrs saltspray resistance

• >1000hrs weathering resistance SAEJ2304

• Hydrophobic surface (CAH₂O=90)

• 4-5H pencil hardness

• Good overcoatability with Epoxies

Application EXOCOAT^TM AC:

• Conventional low pressure and high presure airless and airmix spraying