Koch Chemie Hull PreCleaner Acid for Deck & Hull Pre-Wash | Fort Myers

Hull PreCleaner Acid is Koch Chemie’s highly concentrated acidic pre-wash for boat decks and hulls on gelcoat, paint, and plastics. Fort Myers salt and mineral fouling often need an acid pre-clean before Boat Wash or polishing—use carefully and never on real wood or aluminum.

Features / Why Pros Use It

• Highly concentrated acid pre-cleaner for hull and deck
• For gelcoat, paint, and plastic surfaces onboard
• Dilute ~1:10 for typical soils; neat for heavy soiling (per Koch)
• Not for real wood or aluminum—wear eye protection

How to Use

• Dilute 1:10 with water for normal soils, or apply neat for heavy soiling
• Apply with an acid-rated pressure sprayer or appropriate applicator
• Agitate as needed; do not allow to dry—rinse thoroughly
• Never use on aluminum or real wood; avoid hot surfaces

Shop Koch Chemie Marine at MDSC

Marine Detail Supply Co. stocks the full Koch Chemie Marine Line for professional boat detailing 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 gelcoat or paint correction job.

• 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