Demon Rain Repellent Windscreen Water Repellent Glass Treatment 100ml - CarPlan - DRR100

The duration of the effect varies depending on driving conditions, weather, and cleaning methods. Typically, it provides effective water repellency for several weeks to a few months. Reapplication is recommended when you notice a decrease in performance.

While the product is designed for glass, it is generally recommended for windscreens, side windows, and mirrors. Check the product packaging for specific guidance on headlight application, as materials can vary.

The product is formulated for glass. Avoid contact with car paintwork. If accidental contact occurs, wipe it off immediately with a damp cloth to prevent any potential residue.

Yes, the product significantly improves water dispersion, allowing you to use your wipers less frequently, especially at higher speeds, which can reduce wear and tear on wiper blades and improve quietness.

It is best to apply the product in moderate temperatures, ideally between 5°C and 30°C (40°F and 85°F), and when the glass surface is free of ice or frost. Ensure the surface is dry before application.

This specific product is a 100ml applicator.

This can occur if the product was applied unevenly or if the glass was not perfectly clean beforehand. Ensure uniform application and clean the glass thoroughly before reapplication. Buff gently with a clean microfiber cloth if streaking persists.

The hydrophobic layer may have degraded over time due to environmental factors or cleaning. Reapply the product according to the instructions for renewed effectiveness.

Ensure the applicator is functioning correctly and the product is dispensing. Apply in steady, overlapping strokes. If the applicator is clogged, clean it as per any specific instructions or consider a new application if the product is old.