Armor-Sil® R/G is the most effective and longest-lasting Running gear protection technology available globally. Increasing and maintaining peak propeller performance and durability for years is key for all types of large commercial vessels as well as pleasure craft. Armor-Sil® R/G is another first for Seacoat SCT, LLC. Armor-Sil® R/G is a silane–siloxane nano-coating that cures to an extremely hard glass-smooth finish. It is anon-stick surface. It should be applied over our PPV 702 etch primer.