Sea-Hawk S-75 Alumi-Chrome is a two-component, zinc chromate polyvinyl butryl wash primer designed to promote adhesion on metal surfaces. It serves as an excellent bond coat for various surfaces including aluminum, galvanized metal, lead, brass, magnesium and other porous metals. Alumi-Chrome is ideal for large surfaces and where corrosion resistance is required. This product is transparent yellow meeting specification MIL-C-851C.
Apply in a thin clear coat as excessive build-up will lead to less adhesion of the top coat. S-75 and S-75C are moisture sensitive and should be top coated after about an hour. Avoid applying in moist conditions.
• Color: Transparent yellow
• Finish/sheen: Flat
• Volume solids: 15-17%
• Solids by weight: 3%
• Mix ratio: 1:1 with catalyst S-75C
• VOC: +500 grams/Liter
• Film thickness: 0.4-0.6 millimeters wet film thickness (WFT) per coat
• Recommended coats: 1
• Theoretical coverage: 300 Sq. Ft./Gal. at the recommended film thickness
• Brush or spray