Koch Chemie Interior Brush Set — Color-Coded Interior Detail Brushes Koch Chemie Interior Brush Set includes coarse, fine, and extra-fine brushes with color-coding so you can match bristle stiffness to vents, stitching, and delicate interior textures without cross-contaminating grit from exterior work. Features / Why Pros Use It Coarse / fine / extra-fine interior brushes Color-coded for process control in the shop For vents, stitching, buttons, and tight interior gaps Use with appropriate interior cleaners How to Use Dry dust first; then agitate cleaner with the matching brush grade Wipe or extract residue; keep brushes clean between greasy and fabric jobs Do not use exterior-gritty brushes on leather or piano black Air-dry brushes after washing Shop Koch Chemie at MDSC Marine Detail Supply Co. stocks Koch Chemie paint-correction and car-care chemistry for pro detailing shops across Fort Myers and Southwest Florida. Pick up at HQ — 14231 Jetport Loop, Fort Myers — or order for same-day shipping when you qualify. Ask our team about pads, machines, and the right cut level for your correction job. Shipping & Guarantee 100% Price Match Guarantee FREE Shipping on all domestic U.S. orders over $200 Orders under $200 ship for a flat rate of just $5 Same-Day Shipping on orders placed before 2:00 PM ET, Monday–Friday (business days) All orders ship via UPS Ground or USPS Priority Mail Discounted UPS Overnight shipping rates available Questions? Call us at 800-248-6130
