The F9 BARC Comprehensive Rust and Stain Remover is an industrial-grade cleaning solution specifically designed for professional use. It effectively removes a wide range of stains, including heavy rust, fertilizer stains, orange battery acid stains, and snow plow blade rust, across multiple surfaces.
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For specialized rust challenges originating from metal furniture, fixtures, or pyrite, or in cases of particularly thick or heavy rust, a pre-treatment with F9 Efflo diluted at a ratio from 4:1 to 10:1 with water is recommended. Apply and scrub the affected areas before proceeding with F9 BARC for effective rust removal.
F9 products are the best. When you need to target a stain but don't want to damage plants, F9 products are the way to go. When they came out with BARC (battery acid restoration cleaner) they changed the game. We now had a specialized cleaner that was safe to use by all. You couldn't screw it up if you tried.