How to Clean Car Windows Without Streaks: The Correct Technique
Why windows often end up with streaks
Almost everyone has experienced it: you wash the car window, it looks clean, then when sun comes in you see a fog of streaks and unpleasant marks. The problem isn't the windows but wrong product, wrong technique, or both. Generic detergents leave wax, ammonia or surfactant residues that crystallise as the glass dries.
Features of a good car glass cleaner
- Ammonia-free: ammonia attacks protective films and window rubber edges
- No aggressive alcohol: stains dashboard plastics if it accidentally drips
- Fast evaporation: less wet time = fewer streaks
- Compatible with tinted films
The MA-FRA Glass Cleaner is formulated specifically for car windows.
The 3 products you need
1. Glass cleaner: Glass Cleaner MA-FRA or Maniac Line equivalent.
2. Dedicated glass microfibre: 1shine Glass cloth has specific weave to not leave lint.
3. Winter washer fluid: MA-FRA Cristalbel Artic -70 for the windshield reservoir.
Correct technique step by step
- Cold windows in shade: never in sun
- Spray on the microfibre, not on the glass: avoids drips on dashboard
- Horizontal inside, vertical outside: easy to identify and fix streaks
- Second dry microfibre: polish after applying product
- Clean edges and corners too
The detail secret: wipers
Dirty wipers redeposit dirt right after cleaning. Clean blades with Glass Cleaner microfibre. If hard or worn, replace before complaining.
Hydrophobic treatment
After cleaning, consider hydrophobic treatment like MA-FRA Rain Speed: water slides off in heavy rain leaving clean glass.
Mistakes to avoid
- ❌ Paper towels or newspaper (microscopic scratches)
- ❌ Cleaning in sun (guaranteed streaks)
- ❌ Same cloth for windows and plastics
- ❌ Skipping final dry microfibre pass
- ❌ Spraying detergent directly on adjacent dashboard
Conclusions
Streak-free windows need 3 things: right product, dedicated microfibre, correct technique. MA-FRA Glass Cleaner on LS Motors. Shipping 24/48h.



