---
product_id: 206019735
title: "Windscreen Washer Additive"
brand: "rain-x"
price: "751 DH"
currency: MAD
in_stock: null
reviews_count: 8
url: https://www.desertcart.ma/products/206019735-windscreen-washer-additive
store_origin: MA
region: Morocco
---

# 1L advanced washer additive streak-free powerful cleaning rain-repellent hydrophobic coating Windscreen Washer Additive

**Brand:** rain-x
**Price:** 751 DH
**Availability:** ❌ Out of Stock

## Summary

> 🚗 See Clearly, Drive Confidently – Never Miss a Detail!

## Quick Answers

- **What is this?** Windscreen Washer Additive by rain-x
- **How much does it cost?** 751 DH with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/206019735-windscreen-washer-additive)

## Best For

- rain-x enthusiasts

## Why This Product

- Trusted rain-x brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Clean:** Prevents dirt buildup, reducing frequent washes and wiper use.
- • **Effortless Integration:** Compatible with all windscreen washer systems for instant upgrade.
- • **Hydrophobic Rain Shield:** Invisible rain-repellent layer that makes water bead and roll off instantly.
- • **Streak-Free Safety Boost:** No smudges or glare—just flawless visibility day and night.
- • **Year-Round Crystal Clarity:** Superior cleaning formula that tackles grime, sap, and bugs in every season.

## Overview

Rain-X 831991L Windscreen Washer Additive is a 1-litre high-performance formula designed to clean stubborn road grime, insect residue, and bird droppings while applying a rain-repellent coating. Compatible with all washer systems, it delivers streak-free, crystal-clear visibility in all weather conditions, enhancing driving safety and comfort year-round.

## Description

Rain-X 831991L Windscreen Washer Additive, 1 Litre

## Features

- ✅ REVOLUTIONARY FORMULA FOR YEAR-ROUND WINDSCREEN CLEANING: Designed to provide superior cleaning performance in all seasons, this advanced washer additive ensures that dirt, grime, and other contaminants are effortlessly removed from the glass surface. The powerful cleaning agents break down stubborn residues, including insect splatters, tree sap, bird droppings, and road grime, without leaving streaks. Regardless of weather conditions, this solution delivers a spotless finish that enhances visibility and driving safety. Engineered for all types of vehicles, it integrates seamlessly into any windscreen washer system, ensuring reliable performance with every application.
- ✅ EFFECTIVE REMOVAL OF INSECT RESIDUE, TREE SAP, BIRD DROPPINGS & ROAD GRIME: Tough road contaminants can obscure visibility and make driving hazardous. This specially formulated additive tackles even the most stubborn dirt, breaking down and lifting dried-on insect remains, sticky tree sap, and heavy road grime. Bird droppings, which can cause permanent stains if left untreated, are swiftly dissolved without the need for excessive scrubbing.
- ✅ APPLIES RAIN REPELLENT COATING WITH EVERY USE: With every application, this washer additive delivers a hydrophobic protective layer that enhances water beading and runoff. The rain-repellent coating allows water to roll off effortlessly, significantly improving visibility during heavy downpours. By reducing the need for constant wiper use, especially at high speeds, it enhances safety and driving comfort. This invisible barrier also prevents dirt and debris from adhering to the glass, making future cleaning much easier and keeping the windscreen in optimal condition for longer.
- ✅ STREAK-FREE FORMULA FOR IMPROVED VISIBILITY AND DRIVING COMFORT: Unlike conventional washer fluids that leave behind smudges and streaks, this advanced formula ensures a flawless finish with every use. Streak-free performance guarantees crystal-clear glass, reducing glare and reflections that can hinder visibility. Whether driving at night, in foggy conditions, or under direct sunlight, the result is a consistently clear view of the road. By eliminating residue build-up, this washer additive enhances both safety and driving comfort, allowing for a more relaxed and confident journey.
- ✅ COMPATIBLE WITH ALL WINDSCREEN WASHER SYSTEMS FOR EASY USE: This high-performance additive is designed for effortless integration into all windscreen washer systems. Simply mix it with the existing washer fluid to instantly boost cleaning power and apply the rain-repellent effect. Suitable for use with both water-based and pre-mixed washer fluids, it delivers outstanding results in all weather conditions. Whether driving through scorching heat, heavy rain, or freezing temperatures, this formula ensures a pristine windscreen for enhanced visibility and a safer driving experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Rain-X |
| Brand | Rain-X |
| Model | Rain-X Screenwash Additive |
| Product Dimensions | 8.5 x 8.5 x 23 cm; 1.01 kg |
| Item model number | 831991L |
| Manufacturer part number | 831991L |
| Special Features | Streak Free |
| Item Weight | 1.01 kg |

## Images

![Windscreen Washer Additive - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Questions & Answers

**Q: Can you use this by itself or does it have to be mixed with screen wash**
A: I thought it was a screen wash so always use it diluted with tap water. It has works extremely well.

**Q: Can i mix this with other screenwash?**
A: Yes you can. I tend to add about 1/4 bottle to a full tank of screen wash.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Effective additive for car washer bottles
*by I***K on 20 May 2025*

If you get smearing on your windscreen then this is the ideal product!You simply add a small amount to the cars washer bottle and the solution results in a very clear windscreen with water simply beading off the screen, much improving the visibility. The solution is also effective at removing bug residue and seems to stick to the screen that it is effective for quite a while.For the amount you get and the ease in which it removes road-film, this is a value for money product.Highly recommended.

### ⭐⭐⭐⭐⭐ Good quality and value.
*by R***X on 15 September 2025*

Good stuff. Helps to keep windscreen clear of rain and to prevent wipers from leaving marks. Will continue to use this regularly.

### ⭐⭐⭐⭐⭐ Great stuff
*by T***T on 29 June 2025*

Why did you choose this product over others?:Living in the moist mildewy climes of scotland ,where summer is probably 2 weeks in may and thats it, windscreen wipers are fairly important. I used the karate kid wipe on wipe off rain x and found it to be superb . On side windows it would last for months . On the windscreen ....not so much . Impressive but after a bit of wiper action ,meh. While blethering with some web toed comrades i was extolling the virtues of said rain x to a motor cycle helmet wearer , it came up about the rain x screen wash . Now i didnt know this stuff existed and last screen wash i had stank of bubblegum and has put me off bubblelisous for life. After a trip into the amazon and delivered nxt day (sooooperb) ,i was taken back a bit about size of bottle ,it was a bit small compared with the foul smelling radioactive gallon i was used to. So having thouroghly scanned and not read the instructions ,sniffed the bottle (ok) i put a scotsmans amount in ,mabey about a quarter mabey... it works well . Cleaned the grime ,streak free ,didnt smell and had the water beading of the hard work stuff . Been a few weeks and im still impressed by it . We will see if the more winter times need a more potent mix ,i will have no probs getting this again .

## Frequently Bought Together

- Rain-X Windscreen Washer Additive - Streak-Free Cleaning & Rain Repellency Screenwash - Removes Bugs, Sap & Road Grime - Enhances Visibility & Driving Comfort - 500ml
- Rain-X 2-in-1 Glass Cleaner + Rain Repellent – Streak-Free Shine & Advanced Water Beading – Helps Protect Against Rain, Snow, Ice & Insects – Quick & Easy Spray Application – 500ml
- Rain-X RTU Screenwash with Insect Remover & Rain Repellent - Streak-Free Windscreen - Hydrophobic Technology for Superior Rain Protection in Summer - Prevents Bacteria & Enhances Visibility - 5L

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-01-22*