Below is a datasheet breakdown for the most likely candidate: the , along with technical details on Zinc Anode composition in general.
: Best applied via airless spray (Tip size: 0.43–0.53 mm). Brushes or rollers are generally reserved for touch-ups or small areas. Drying Times (at 25°C) : Touch Dry : 20 minutes. Hard Dry : 6 hours. Pot Life : 8 hours. Sacrificial Anode Alternative: Model 620 zinc anode 620 datasheet
The Zincanode 620 stands out due to its high metallic zinc content and rapid curing capabilities. Below is a datasheet breakdown for the most