GRODAL RPWB 200 BI Description It is a synthetic water based corrosion preventive oil. Application : designed for corrosion protection on cast iron, carbon steel, high speed steel, most ferrous, nonferrous and aluminium alloys. Advantage- Excellent Rust/corrosion protection. Nitrite free hence eliminates possible health hazards associated with these materials. Eliminates oil mist. Provides excellent multi-metal corrosion protection. get a quote