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expireddoublehelixx | Staff posted Jul 30, 2025 06:44 PM
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expireddoublehelixx | Staff posted Jul 30, 2025 06:44 PM

3.5-oz Rain-X Original Treatment Glass Water Repellent

$3.25

$8.00

59% off
Walmart
26 Comments 16,366 Views
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Deal Details
Walmart has 3.5-oz Rain-X Original Treatment Glass Water Repellent on sale for $3.26. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

Thanks to Deal Hunter doublehelixx for finding this deal.

Features:
  • Improves visibility
  • Rain-X glass treatment easily removes frost, ice, salt, mud and bugs
  • Apply to exterior glass
  • Improve the safety of driving while in rain and on ice
  • Rain-X original glass treatment can even be used on aircraft

Editor's Notes

Written by megakimcheelove | Staff
  • Directions: Clean and thoroughly dry surfaces before treating. Apply in temperatures above 40°F. Apply Rain-X to a small, folded, dry cloth and wipe onto exterior glass using a firm, circular and overlapping motion. Allow to dry until slight haze appears. Remove haze with dry cloth or by sprinkling with water and wiping with paper towel until crystal clear.
  • Our research indicates that this offer is $1.33 lower (29% savings) than the next best available price from a reputable merchant with prices starting from $4.59.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by doublehelixx | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Walmart has 3.5-oz Rain-X Original Treatment Glass Water Repellent on sale for $3.26. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

Thanks to Deal Hunter doublehelixx for finding this deal.

Features:
  • Improves visibility
  • Rain-X glass treatment easily removes frost, ice, salt, mud and bugs
  • Apply to exterior glass
  • Improve the safety of driving while in rain and on ice
  • Rain-X original glass treatment can even be used on aircraft

Editor's Notes

Written by megakimcheelove | Staff
  • Directions: Clean and thoroughly dry surfaces before treating. Apply in temperatures above 40°F. Apply Rain-X to a small, folded, dry cloth and wipe onto exterior glass using a firm, circular and overlapping motion. Allow to dry until slight haze appears. Remove haze with dry cloth or by sprinkling with water and wiping with paper towel until crystal clear.
  • Our research indicates that this offer is $1.33 lower (29% savings) than the next best available price from a reputable merchant with prices starting from $4.59.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by doublehelixx | Staff

Community Voting

Deal Score
+37
Good Deal
Visit Walmart

Price Intelligence

Model: Rain- X Original Treatment 3.5 oz - 800002242W

Deal History 

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Sort: Lowest to Highest | Last Updated 10/8/2025, 08:21 PM
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Top Comments

Appreciative
133 Posts
25 Reputation
I am adding to this to both be helpful and see if others add great ideas. I tried wax. I learned that it needs to be a wax that dries clear. I had white residue fill in the rock chip indentions of my windshield. I found the white speck spots distracting. I also found that wax leaves swirls on the windshield. The swirls did not come out with a little water and mitt, like this Rain-X swirls do. I am next going to try Rain-X Ceramic. I already bought it. I am also waiting for a deal on Rain-X wipers. They are silicone and says you will never need another pair of wipers. Thx again for the posts here.
JonnyQuazando
447 Posts
78 Reputation
Bad idea, you don't want ketones and acetone being aerosolized and sprayed in your direction, or stored in your washer system
JonnyQuazando
447 Posts
78 Reputation
The aerosol can is by far the lowest concentration of Rain-X. The small bottle is the highest, followed by the spray bottle, then the wipes, then the aerosol spray. The aerosol spray can is awful

25 Comments

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Jul 30, 2025 07:31 PM
63 Posts
Joined Aug 2006
itsjerJul 30, 2025 07:31 PM
63 Posts
12oz spray is $5.89 at Walmart. 3.5oz deal isn't Slick
2
Jul 30, 2025 08:18 PM
126 Posts
Joined Jan 2021
Trevz86101Jul 30, 2025 08:18 PM
126 Posts
Quote from itsjer :
12oz spray is $5.89 at Walmart. 3.5oz deal isn't Slick
You add this to windshield washer fluid tho
9
Jul 30, 2025 09:04 PM
2,087 Posts
Joined Aug 2014
fawziJul 30, 2025 09:04 PM
2,087 Posts
would this work to spray car sensors to keep lenses and sensors clean ?
Pro
Jul 30, 2025 09:20 PM
2,373 Posts
Joined Nov 2010
MasterRigger
Pro
Jul 30, 2025 09:20 PM
2,373 Posts
Quote from itsjer :
12oz spray is $5.89 at Walmart. 3.5oz deal isn't Slick
I always wondered if you are getting 12oz of rainx or 8.5oz of propellant and 3.5oz of rainx?
Pro
Jul 30, 2025 09:26 PM
2,373 Posts
Joined Nov 2010
MasterRigger
Pro
Jul 30, 2025 09:26 PM
2,373 Posts
Quote from fawzi :
would this work to spray car sensors to keep lenses and sensors clean ?
I've wondered that myself. So i asked PerplexityApplying hydrophobic products like Rain-X to car lenses and sensors can have both benefits and risks, depending on the material and type of product used.For Camera Lenses and Sensors • Standard Rain-X (for glass): It's not recommended for plastic or polycarbonate camera lenses and sensor covers, as it can cause clouding, haze, or long-term damage to these surfaces. Numerous car owners and forums report that Rain-X should not be used on non-glass lenses, with some stating it can "destroy" polycarbonate or acrylic lenses. • Rain-X Plastic Water Repellent: Rain-X now makes a version specifically formulated for plastic surfaces, including acrylic, polycarbonate, and other common automotive lens materials. This product restores clarity, protects against UV, and safely repels water from plastic surfaces, making it preferable for backup cameras, headlights, and other sensors with non-glass covers.User Experiences & Sensor Operation • Many Tesla and BMW owners have applied Rain-X (or similar hydrophobic treatments) to camera/sensor housings with positive effects, noting better water beading and improved camera clarity in the rain. Some report auto-wipers work more reliably because water forms easily detectable beads rather than sheeting over the sensor area. • However, there are also mixed reports about using standard formulas on plastic lenses, with concerns over haze or residue if applied incorrectly.Recommendations • Use the correct product: Only use Rain-X Plastic Water Repellent or similar plastic-safe hydrophobic treatments on non-glass camera lenses and headlights. • Test a small area: Always test on a small, inconspicuous spot first to ensure compatibility. • Clean thoroughly before application: Proper cleaning and buffing are essential to avoid smearing or clouding, no matter which product you use. • Avoid washer fluid issues: Rain-X windshield washer fluids have been linked to malfunctioning level sensors in some vehicles but this does not apply to wipe-on hydrophobic coatings. Bottom line: For car camera lenses and sensors, only use Rain-X formulas made specifically for plastics, not the standard glass variant. This will enhance water repellency, reduce water spots, and help maintain image clarity—without risking haze or damage to the lens material. Always follow label instructions and ensure the chosen product is safe for the particular lens or sensor material on your vehicle.Summary Table
1
7
Jul 30, 2025 10:06 PM
447 Posts
Joined Jul 2018
JonnyQuazandoJul 30, 2025 10:06 PM
447 Posts

Our community has rated this post as helpful. If you agree, why not thank JonnyQuazando

Quote from itsjer :
12oz spray is $5.89 at Walmart. 3.5oz deal isn't Slick
The spray is less potent than the bottle form
2
1
Jul 30, 2025 10:08 PM
447 Posts
Joined Jul 2018
JonnyQuazandoJul 30, 2025 10:08 PM
447 Posts

Our community has rated this post as helpful. If you agree, why not thank JonnyQuazando

Quote from Trevz86101 :
You add this to windshield washer fluid tho
Bad idea, you don't want ketones and acetone being aerosolized and sprayed in your direction, or stored in your washer system
1

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Jul 30, 2025 10:08 PM
447 Posts
Joined Jul 2018
JonnyQuazandoJul 30, 2025 10:08 PM
447 Posts

Our community has rated this post as helpful. If you agree, why not thank JonnyQuazando

Quote from MasterRigger :
I always wondered if you are getting 12oz of rainx or 8.5oz of propellant and 3.5oz of rainx?
The aerosol can is by far the lowest concentration of Rain-X. The small bottle is the highest, followed by the spray bottle, then the wipes, then the aerosol spray. The aerosol spray can is awful
2
Jul 31, 2025 05:00 AM
1,131 Posts
Joined Aug 2012
Wmgrant01Jul 31, 2025 05:00 AM
1,131 Posts
Good old hard shell Turtle wax is the best for your windshield it will bead water for months
1
Jul 31, 2025 05:01 AM
1,131 Posts
Joined Aug 2012
Wmgrant01Jul 31, 2025 05:01 AM
1,131 Posts
Good old hard shell Turtle wax is the best for your windshield it will bead water for months
2
Jul 31, 2025 05:34 PM
480 Posts
Joined Dec 2021
BraveTeam7995Jul 31, 2025 05:34 PM
480 Posts
never have to use these ever again, just use their washer fluid with rain x... less work and does the job..
Aug 01, 2025 03:24 AM
1 Posts
Joined Jan 2018
RyanJ511Aug 01, 2025 03:24 AM
1 Posts

Our community has rated this post as helpful. If you agree, why not thank RyanJ511

Quote from Trevz86101 :
You add this to windshield washer fluid tho
No you don't. The directions say use a cloth to wipe it on the windshield, then buff it off after it dries. Been using it for years.
1
Aug 01, 2025 03:56 AM
649 Posts
Joined Jan 2007
LochNiSSAug 01, 2025 03:56 AM
649 Posts
Edit wrong product
Last edited by LochNiSS July 31, 2025 at 08:59 PM.
1
Aug 01, 2025 05:05 PM
133 Posts
Joined Oct 2010
AppreciativeAug 01, 2025 05:05 PM
133 Posts

Our community has rated this post as helpful. If you agree, why not thank Appreciative

Quote from Wmgrant01 :
Good old hard shell Turtle wax is the best for your windshield it will bead water for months
I am adding to this to both be helpful and see if others add great ideas. I tried wax. I learned that it needs to be a wax that dries clear. I had white residue fill in the rock chip indentions of my windshield. I found the white speck spots distracting. I also found that wax leaves swirls on the windshield. The swirls did not come out with a little water and mitt, like this Rain-X swirls do. I am next going to try Rain-X Ceramic. I already bought it. I am also waiting for a deal on Rain-X wipers. They are silicone and says you will never need another pair of wipers. Thx again for the posts here. Smilie
5

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Aug 01, 2025 07:50 PM
221 Posts
Joined Jul 2008
g33kazoidAug 01, 2025 07:50 PM
221 Posts
Quote from Trevz86101 :
You add this to windshield washer fluid tho
No, you are confused with a similar product manufactured by RainX that is designed to be added to washer fluid. It's even in a similar looking bottle, but maybe slightly taller. This deal is for the version of the product that is meant to be applied to your windshield and buffed off.

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