Walex RV & Marine Black Streak Remover 64 oz — Powerful Exterior Cleaner for Fiberglass & Gelcoat

Walex Premium RV/Marine Black Streak Remover is a concentrated exterior cleaner that lifts black streaks, scuffs, and environmental stains from RVs, campers, and boats for a restored, factory-fresh appearance.

Whether you park lakeside, spend weekends on the road, or store your RV outdoors between trips, sun, rain, and road grime can leave dark streaks and residue that dull the exterior. This 64 oz formula from Walex is formulated to penetrate and dissolve buildup without aggressive scrubbing, making it practical for routine maintenance and seasonal deep cleaning alike. It’s intended for painted, gelcoat, fiberglass, and many other common exterior surfaces found on recreational vehicles and marine craft.

How quickly does it remove black streaks and stains?

The cleaner works on contact to break down the pigments and organic films that form black streaks, so you typically see results after a short dwell time and a gentle wipe or rinse. Extremely old or burnt-on stains may require a second application, but most streaks lift on the first treatment.

• Visible lift after a few minutes of dwell time on moderate stains
• Repeatable application for persistent, aged streaks
• Minimizes heavy scrubbing — saves time and effort

Which surfaces and vehicles is this safe to use on?

Walex Premium remover is designed for RV and marine exteriors including painted aluminum, fiberglass, gelcoat, and many common RV siding materials. Avoid use on bare or untreated metals and always test in an inconspicuous spot first to ensure colorfastness.

• Suitable for RVs, motorhomes, trailers, campers, and boats
• Works on gelcoat, painted surfaces, and many composite exteriors
• Not recommended for unsealed wood, bare metals, or sensitive decals without spot-testing

How do I apply the product for best results?

Application is straightforward: spray or apply directly to the stained area, allow a short dwell time to let the formula penetrate, then agitate lightly if needed and rinse or wipe clean. For large areas, work in manageable sections to keep the solution active on the targeted surface.

• Apply in shaded areas and on cool surfaces for best performance
• Allow a few minutes of dwell time before wiping or rinsing
• Use a soft cloth, brush, or pressure rinse for final removal

Will it affect decals, trim, or exterior finishes?

The formula is developed to remove streaks while preserving common exterior finishes, but aggressive scrubbing or prolonged contact on decals and soft trim could cause damage. When cleaning near graphics or rubber trim, test first and use minimal agitation to protect the finish.

• Safe on most factory paints and gelcoats when used as directed
• Spot-test near decals, trim, and non-factory surfaces
• Rinse thoroughly to remove any residue after cleaning

Who is this for: Walex Premium RV/Marine Black Streak Remover is for RV and boat owners who prefer a practical, time-saving solution for exterior care—ideal for weekend adventurers, seasonal detailers, and fleet managers who need a reliable cleaner that restores appearance without complex procedures. If you want to remove black streaks and scuff marks quickly while preserving your vehicle’s original look, this 64 oz cleaner is formulated to make exterior maintenance easier and more effective.