Black streaks on your RV are almost unavoidable. Roof sealants, rubber gaskets, and road grime combine with rain to leave dark vertical streaks down the sides of your rig. Lippert's Black Streak Remover is purpose-formulated to cut through those streaks fast -- along with bugs, grease, oil, and general road dirt -- without harming the surfaces underneath. Spray it on, wipe it off, and drive away with a clean, residue-free finish.
Generic all-purpose cleaners can be too harsh for RV gelcoat and painted aluminum, or too weak to actually lift embedded black streaks. Lippert's formula sits in the right middle ground: strong enough to dissolve the oxidized rubber and sealant residue that causes streaking, yet safe for the broad range of materials found on a typical RV exterior.
The 32 oz bottle has a trigger spray head for targeted application. No diluting, no brushing -- spray the affected area, let it dwell briefly, then wipe clean with a microfiber cloth or soft towel. It leaves no soapy residue or film behind, so you're not left chasing streaks with a second rinse pass.
Formulated for fiberglass, gelcoat, painted aluminum, glass, vinyl, rubber seals, doors, and exterior hatches.
No scrubbing required on most streaks. Spray directly on the affected area and wipe clean -- works without a full wash setup.
Works beyond black streaks -- removes bugs, road tar, grease, oil, and general exterior grime in a single product.
Manufactured domestically. Part number 2022013805 is the Lippert-branded version of this proven exterior cleaning formula.
Black streaks form when moisture carries dissolved rubber, sealant residue, and airborne pollutants down the sidewall. Rubber roof edges, slide toppers, vent caps, and EPDM seals are common source points. The streaks are not simply dirt -- they are partially oxidized organic compounds that bond to the gel coat or painted surface. Standard soap-and-water washing rarely removes them completely. A dedicated remover with the right solvency level, like this Lippert formula, is the correct tool for the job.
This formula is safe for use on factory-clearcoated fiberglass and gelcoat surfaces without dulling or etching. Always test a small inconspicuous area first if the surface has been repainted with an aftermarket finish, as custom coatings vary in solvent sensitivity.
Beyond black streaks, this product is effective on insect remains (bugs), bird droppings, road film, grease, and oil. Full-timers and frequent travelers often keep a bottle in their wet bay or exterior storage for spot cleaning between washes.
Cleaning is only half the battle. To reduce how quickly streaks return, inspect and reseal any cracked or degraded roof caulk and vent seals annually. A fresh coat of paste wax or polymer sealant over the sidewall gives the surface a slicker finish that sheds water and contaminants faster. Slide topper fabric is another common source -- keeping it clean and treated reduces how much residue washes off during rain.
Black streak remover is not a substitute for annual roof inspection and resealing. If the same area streaks repeatedly and heavily after every rain, the sealant above that point is likely cracked or separated. Address the root cause -- sealing the leak source -- to stop the ongoing staining.