---
product_id: 727714375
title: "Rain-X Windshield Washer Fluid Additive 500ml"
brand: "rain-x"
price: "Bs.27597"
currency: BOB
in_stock: null
reviews_count: 2
url: https://www.desertcart.bo/products/727714375-rain-x-windshield-washer-fluid-additive-500ml
store_origin: BO
region: Bolivia
---

# Water-repellent formula Covers up to 16L washer fluid 500ml concentrated additive Rain-X Windshield Washer Fluid Additive 500ml

**Brand:** rain-x
**Price:** Bs.27597
**Availability:** ❌ Out of Stock

## Summary

> 💦 Drive clear, drive confident—never miss a drop!

## Quick Answers

- **What is this?** Rain-X Windshield Washer Fluid Additive 500ml by rain-x
- **How much does it cost?** Bs.27597 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/727714375-rain-x-windshield-washer-fluid-additive-500ml)

## 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

- • **Enhanced cleaning power:** Boosts the effectiveness of your existing washer fluid for streak-free, spotless windshields.
- • **Universal compatibility:** Ideal for diesel, off-road, sports, and everyday vehicles—because every ride deserves clarity.
- • **Maximize your washer tank:** One 500ml bottle treats up to 3.5 gallons (16L) of fluid—long-lasting protection without frequent refills.
- • **Effortless all-season performance:** Works seamlessly with pure water or any washer fluid, perfect for summer and beyond.
- • **Crystal-clear vision, rain or shine:** Transforms any washer fluid into a water-repellent powerhouse for safer drives.

## Overview

Rain-X Windshield Washer Fluid Additive is a 500ml concentrated formula that enhances any windshield washer fluid by adding a durable water-repellent layer. Compatible with pure water or any washer fluid, it treats up to 16 liters, improving cleaning efficiency and visibility in all weather conditions for a safer, streak-free driving experience.

## Description

Full description not available

## Features

- Washer Tank Additive Water Repellent
- Simply mix it in the washer tank to complete a water-repellent washer solution
- Washer and wipe to provide water repellent effect
- Works with any type of washer fluid
- In summer, you can add it to clean water
- This single bottle can be used for 3.5 gal (16 L) of washer fluid (pure water)
- Improves the effectiveness of cleaning washer fluid

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 18 x 17.8 x 24.1 cm; 8.5 g |
| Specific Uses Keywords | diesel-motor, low-rider-vehicles, off-road-vehicles, sports-compact-vehicles, trucks |
| Color | transparent |
| Special Features | Water repellent, improves cleaning effect |

## Product Details

- **Brand:** Rain-X
- **Item Form:** Liquid
- **Specific Uses For Product:** Windshield
- **Item Volume:** 16.9 Fluid Ounces
- **Unit Count:** 500.0 Milliliters
- **Surface Recommendation:** Windshield
- **Material Type Free:** Liquid
- **Special Feature:** Water repellent, improves cleaning effect
- **Number of Items:** 1
- **Item Weight:** 0.3 Ounces

## Images

![Rain-X Windshield Washer Fluid Additive 500ml - Image 1](https://m.media-amazon.com/images/I/61ALp+LhS7L.jpg)
![Rain-X Windshield Washer Fluid Additive 500ml - Image 2](https://m.media-amazon.com/images/I/71OAfnI60ZL.jpg)
![Rain-X Windshield Washer Fluid Additive 500ml - Image 3](https://m.media-amazon.com/images/I/71V8K9Wp+bL.jpg)
![Rain-X Windshield Washer Fluid Additive 500ml - Image 4](https://m.media-amazon.com/images/I/71jpAwef2yL.jpg)
![Rain-X Windshield Washer Fluid Additive 500ml - Image 5](https://m.media-amazon.com/images/I/71TzOyjeARL.jpg)

## Questions & Answers

**Q: I love the how well the standalone gallon rain-x jugs work.will adding this to non-rain-x fluid make it work just as well as standalone? or not quite?**
A: be cautious i had a washer fluid i added this to and 24 hours later the near as i could tell the rainx reacted with the blue dye in the washer fluid and i had clear washer fluid with a layer of blue sticky slime floating on top of it  i have only had it happen once but might mix this in a jug with you preferred brand of washer fluid and let it set for a day before you add it to your vehicle reservoir to make sure it wont react the same way

**Q: Does this product work well with de-icer washer fluid? Or should I stick to the original glass treatment?**
A: It will work with anything, if you want deicing, you must use it with a deicing washer fluid as a base, or just put 1/2 a bottle of rubbing alcohol in a gallon of water then add 4 oz RainX... the RainX on it's own does a great job as a cleaning fluid, but will freeze without some kind of additive

**Q: Everywhere I look it says don’t add just water to the tank can you or can you not just mix with water?**
A: Yes, you can mix it with plain water - it says so right in the description. I suggest using distilled water though, because the minerals in tap water might eventually block up your lines.

**Q: Does this leave hard-to-remove stains on car? Clog windshield washer nozzles? Leave a hard-to-remove dirty film in windshield corners?**
A: Yes!  Has left bad film and water spots similar to hard water spots on the parts of the glass the wipers don't reach. Washed my windshield at the gas station and it did not come off.  I am pissed.   Probably going to return product and contact rain x for how to clean my windshield.  Also leaves a hard water like stain in a line where right side wiper stops in middle of windshield.   I do not recommend this product .

## Customer Reviews

### ⭐⭐⭐⭐⭐ 唯一無二です
*by T***A on June 13, 2025*

ガラス撥水剤はレインエックスが一番ですね。このウォッシャー液添加剤は通常のウォッシャー液に混ぜても大丈夫です。よく点検で青いウォッシャー液を補充されてガッカリなんて事がありますよね。これは大丈夫なんです！

### ⭐⭐⭐⭐ 便利です
*by 大***5 on July 28, 2025*

ずっとレインXを使っていますが、こちらは既存のウオッシャー液に足すだけなので、使い勝手が良いでも、購入後雨が降っていないので、効果の程は不明ですなので、１つ減

## Frequently Bought Together

- Rain-X RX11806D Washer Fluid Additive-16.9 fl. oz, 500. ml
- Rain-X 800002250 Glass Treatment Trigger, 16 Fl Oz - Exterior Glass Treatment to Dramatically Improve Wet Weather Driving Visibility During All Weather Conditions
- Rain-X 5071268 2-in-1 Glass Cleaner and Rain Repellant, 23 oz. (Pack of 1) - Provides a Streak-Free Clean for Automotive Glass While Preventing Sleet, Snow, Ice, and Road Spray Build Up

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**Shop now:** [https://www.desertcart.bo/products/727714375-rain-x-windshield-washer-fluid-additive-500ml](https://www.desertcart.bo/products/727714375-rain-x-windshield-washer-fluid-additive-500ml)

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-13*