Commercial

Best Screen & Transducer Cleaning Supplies

Updated July 2026 · FishFinders.co Editorial

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Fish finder screens and transducers require specific cleaning products — standard household cleaners damage the anti-reflective coatings and plastic housings. Here's what's safe and what isn't.

Novus Plastic Polish (Screen Cleaning) $

The industry standard for removing light scratches from plastic fish finder screens — a three-step polish system (Heavy Scratch Remover, Fine Scratch Remover, Polish & Shine). Start with Polish & Shine for general cleaning; step up only if scratches are deep.

Plexus Plastic Cleaner & Protectant $

A plastic cleaner, polish, and UV protectant in one product — safe for fish finder screens and housings. Light cleaning and light scratch filling combined with UV protection extends screen life.

Barnacle Buster Transducer Cleaner (Marine) $

Descaler and cleaning solution specifically for marine transducers — removes mineral deposits, barnacles, and growth that accumulate on in-water transducers without damaging the transducer face.

Micro Fiber Cleaning Cloths (Marine Use) $

Soft microfiber cloths safe for fish finder screens — no lint, no scratch risk. Use damp with fresh water for daily cleaning; use dry for dusting.

What NOT to Use

Never use: paper towels (scratch risk on soft plastic screens), ammonia-based glass cleaners (destroy oleophobic coating on touchscreens), acetone or alcohol concentrations over 70% (damage plastic housings), high-pressure water directly on screen seams (forces water into enclosure), or abrasive household cleaners. For touchscreen units: a 50% isopropyl/water solution on a microfiber cloth is the strongest safe cleaning solution.

Frequently Asked Questions

How do I clean my fish finder screen?

Fresh water rinse or damp microfiber wipe for regular use. For stubborn residue, 50% isopropyl/water on a microfiber cloth applied lightly. Never spray cleaner directly on the screen — apply to the cloth first. For scratches, Novus Polish step 2 or 3 can improve minor scratches.

How do I clean barnacles off a transducer?

Barnacles accumulate on in-water transducers over a season. A dedicated marine descaler (Barnacle Buster) soaked on the transducer face removes mineral buildup without damaging the transducer housing. Never scrape with metal tools — the transducer face is sensitive composite material. A plastic scraper or your fingernail works for loose growth.

Does a dirty transducer affect sonar performance?

Yes — growth, mineral deposits, and oil films on the transducer face attenuate the signal. A heavily fouled transducer may show weaker returns, reduced depth capability, and increased noise. Seasonal cleaning after removal from the water is the simplest maintenance step.