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?

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

Does this product work well with de-icer washer fluid? Or should I stick to the original glass treatment?

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

Everywhere I look it says don’t add just water to the tank can you or can you not just mix with water?

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.

Does this leave hard-to-remove stains on car? Clog windshield washer nozzles? Leave a hard-to-remove dirty film in windshield corners?

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 .

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Rain-X ウィンドシールドウォッシャーフルードアディティブ 500ml

Product ID: 727714375

Details

Brand
Rain-X
Item Form
Liquid
Item Volume
16.9 Fluid
Item Weight
567 Grams
Material Type Free
Liquid
Number of Items
1

✨enhances cleaning & water repellency

💧500ml concentrated additive

🚗covers 16L washer fluid

HK$330

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

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Description

🌧️ Drive Clear, Drive Confident — Never Miss a Drop!

EXTENDED COVERAGE - One bottle treats up to 16 liters of washer fluid—maximize every drop.
DUAL ACTION FORMULA - Boosts both water repellency and cleaning efficiency for a spotless windshield.
UNIVERSAL COMPATIBILITY - Works seamlessly with any washer fluid or even plain water in summer.
SMOOTH STREAK FREE WIPING - Reduces wiper friction and noise for crystal-clear visibility in light rain.
EFFORTLESS HYDROPHOBIC POWER - Just mix 5-10ml per 500ml washer fluid for instant rain-repellent glass.

Rain-X Windshield Washer Fluid Additive (500ml) transforms your standard washer fluid into a powerful water-repellent solution. Compatible with all washer fluids and even plain water, it covers up to 16 liters per bottle, improving both cleaning performance and hydrophobic effects for safer, clearer driving in any weather.

Specifications

ASIN	B000BPTVTK
Amazon 売れ筋ランキング	車＆バイク - 4,236位 ( 車＆バイクの売れ筋ランキングを見る ) 自動車用ウィンドウケア - 71位
GTIN (Global Trade Identification Number)	00079118118013
UPC	079118118013
おすすめ度	5つ星のうち4.5 8,898 レビュー
サイズ	500ml
パッケージ内に含まれる商品の数	1
ブランド	Rain-X
ブランド名	Rain-X
メーカー名	Rain-X
メーカー型番	RX11806D
ユニット数	500.0 ミリリットル
リキッドコンテンツが含まれています	はい
品番・型番	RX11806D
品目の容量	16.9 液量オンス
商品の形状	液体
商品の用途	フロントガラス
商品の重量	567 グラム
商品タイプ	液体
商品体積	16.9 液量オンス
商品用途・使用方法	フロントガラス
推奨する地面のタイプ	フロントガラス
推奨使用場所	フロントガラス
特別な機能	撥水効果、クリーニング効果改善
防カビ加工	液体

Reviews

A**Ｆ

とても良い商品で、お勧めです。

私は、まず、500mlのペットボトルにウオッシャー液を約490ml入れて、この液を僅か5から10ml入れると、ウオッシャー液の濃度に関わらずかなりの撥水機能を発揮します。又、ワイパーの汚れを取りながら塗り込むと、ガラスとの摩擦が無くなるのか、ガタガタが無くなり、僅かな雨の時でもスムーズに撥水してくれます。お勧めです。

Invalid date

Y**E

素晴らしい撥水効果

僅かな添加で効果◎

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W**M

Use this product

Awesome. Still great product

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な**お

なかなかです

なかなか優れものです。良く水弾きます。

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A**ー

タンクに注入するだけで簡単です

従来あるウィンドウワッシャー液に混ぜるだけなので無駄なく使えます（タンクの中のワッシャー液が無駄になりません）

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ぽ**ま

控えめな弾きです

ガラコ等のようにがっつり弾くことを期待しているとそこまでではないですが、明らかに何もしないよりかは弾きは良いです。がっつりと弾かない反面、油膜が酷くなることも少ない（遅い）ように感じます。希釈して使える点が良いのでリピート購入しています。

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井**介

これなら他と大差ない

あんまり効果なし

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C**E

ワイパーがスムーズに動く様になりました。

フロントガラスがいつも✨ピカピカ✨

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M**Z

Better than loacl

Good not sure any diffence after mixing it but still it okay better that other loacl brands

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F**A

En México no hay esta opción

Excelente repelente de lluvia, sirve para varios depósitos de limpiaparabrisas!!

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J**Y

Additif rain x

Très bien fonctionne très bien

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M**M

Great screen wash, easy and reliable.

Excellent, rain just bleeds of the screen. Works in conjunction with rainx screen cleaner very effectively. Will always use going forward.

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S**Y

Excellent

Recommend

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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HK$330

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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Rain-X ウィンドシールド ウォッシャーフルード アディティブ 500ml

Details

Details

Description

Specifications

Reviews

Common Questions

Rain-X ウィンドシールドウォッシャーフルードアディティブ 500ml