Streaks often persist when a towel spreads collected oils back onto the glass or cleaner dries before the final wipe. In this video, Bradley demonstrates a method for cleaning both sides of the windshield using fresh microfiber towels, ADAPT or diluted HERO, and a tool for reaching tight corners.
Watch the full windshield cleaning walkthrough.
Why Streaks Keep Coming Back
A streaky windshield often means the cleaning process has redistributed oils instead of removing them. A loaded towel can spread film across the glass, and a hot surface can dry the cleaner before the final wipe. Adding more cleaner to the same dirty towel does not necessarily solve either problem.
Bradley's method separates the wet cleaning pass from the dry finishing pass. Clean towels, enough working solution, access to the lower corners, and useful lighting make a bigger difference than repeatedly wiping the same haze with a saturated cloth.
Clean the inside and outside, then inspect both. Film inside the windshield can remain even after the exterior looks spotless, and exterior grime can hide whether your interior cleaning was successful.
Choose ADAPT or a HERO Solution
ADAPT Waterless Wash is the ready-to-use option Bradley demonstrates. It cleans while leaving a light protective benefit and a slick feel during the finishing wipe. He uses it on both interior and exterior glass in this video.
HERO Rinseless Wash is the concentrate option. Bradley discusses a 128:1 glass-cleaning mixture for this method, using distilled water to avoid adding tap-water mineral residue. For an accurately measured 500 mL total batch at 128:1, use approximately 3.9 mL HERO and 496.1 mL distilled water.
That is the glass recipe discussed in the demonstration, distinct from HERO's standard 256:1 rinseless wash dilution. Measure your mixture and label the bottle. More concentrate is not automatically better for clarity, and ratios for other rinseless brands may differ.
Prepare Towels and a Reach Tool
Have at least two clean, low-lint microfiber towels ready: one for cleaning and another for the final wipe. Bradley prefers The Rag Company FTW towels for this work. Keep extras available if the glass carries heavy film.
Glass towels need to be free of old dressing, wax, and other oily residue. A freshly washed towel can still be unsuitable if contamination remains in it. Inspect the working face and switch materials if every pass creates another smear.
Bradley wraps a microfiber over a Stoner Reach & Clean Tool for the lower windshield and corners. Secure the towel so the bare tool cannot contact the glass or trim. Use fresh material for the finishing pass instead of keeping the wet, dirty cleaning towel on the tool.
Clean the Interior Windshield in Sections
- Cool the glass where possible. Work out of direct sunlight so the solution stays workable long enough to clean.
- Control overspray. Apply cleaner to the towel or applicator near the dashboard rather than spraying sensitive surrounding surfaces.
- Make the wet cleaning pass. Use enough solution to loosen film and fingerprints. Work a section you can finish before it dries.
- Reach the lower edge. Use the towel-covered tool to clean behind the instrument cluster and into the bottom corners.
- Switch to a clean, dry finishing towel. Remove remaining moisture and residue rather than letting it evaporate on the glass.
- Touch up the perimeter. Check the edges and corners by hand where accessible, using a fresh face.
If oily film remains, repeat the cleaning stage with fresh material before attempting another dry buff. A dry towel cannot always remove contamination that the wet pass has only loosened.
Repeat Outside with Separate Clean Material
Remove loose exterior dirt before trying to finish the glass. Then clean with your wet towel and follow with the separate finishing towel. Bradley favors ADAPT outside for its cleaning and light protective effect.
Work smaller sections if the surface is warm or wind is drying the solution quickly. Keep towel faces organized so the contaminated cleaning face does not become the finishing face by accident. A folded towel gives you fresh surfaces without constantly reaching for a new cloth.
Inspect around the windshield edge and the area under the parked wipers where accessible according to the vehicle's instructions. Dirt and cleaner residue there can be dragged back across otherwise clean glass during later use.
Use Wipe Direction to Locate the Remaining Streak
Bradley finishes the inside vertically and the outside horizontally. If a streak remains, its direction helps you identify which side needs attention. The exact direction choice is less important than keeping the two sides different and consistent.
Move your viewing angle and use available light to look for haze. A windshield can appear clear from the passenger side yet show film from the driver's seat. Complete the final inspection from the position where clear visibility matters.
Troubleshoot the Cause Before Adding More Product
| Symptom | Likely check | Next adjustment |
|---|---|---|
| Every wipe makes new oily streaks | Towel contamination or saturation | Change to fresh towels and repeat the cleaning pass |
| Cleaner dries before finishing | Glass temperature and section size | Move to shade and clean smaller areas |
| Edges remain hazy | Incomplete reach | Use the covered reach tool and a fresh finishing face |
| Marks remain after the film is removed | Bonded deposits or glass damage | Assess separately instead of endlessly buffing with cleaner |
Is glass cleaning the same as coating preparation?
No. ADAPT leaves a light protective benefit, which is useful for maintenance but different from preparing bare glass for a new coating. Follow our windshield coating preparation guide before an installation.
Will this remove etched water spots or scratches?
Routine cleaning removes film and residue. Etching and scratches are separate defects and need appropriate assessment rather than stronger wiping pressure.