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forum threaddoublehelixx | Staff posted Yesterday 06:44 PM
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forum threaddoublehelixx | Staff posted Yesterday 06:44 PM

3.5-Oz Rain-X Original Treatment Glass Water Repellent $3.26 + Free S&H w/ Walmart+ or on $35+

$3.26

$8.00

59% off
Walmart
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Walmart [walmart.com] has 3.5-Oz Rain-X Original Treatment Glass Water Repellent for $3.26. Shipping is free w/ Walmart+ (free trial available [walmart.com]) or on orders $35+.
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About the Poster
Walmart [walmart.com] has 3.5-Oz Rain-X Original Treatment Glass Water Repellent for $3.26. Shipping is free w/ Walmart+ (free trial available [walmart.com]) or on orders $35+.

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

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Sort: Lowest to Highest | Last Updated 7/31/2025, 12:16 PM
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Walmart$3.26
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Yesterday 07:31 PM
63 Posts
Joined Aug 2006
Yesterday 07:31 PM
itsjerYesterday 07:31 PM
63 Posts
12oz spray is $5.89 at Walmart. 3.5oz deal isn't Slick
1
Yesterday 08:18 PM
117 Posts
Joined Jan 2021
Yesterday 08:18 PM
Trevz86101Yesterday 08:18 PM
117 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
Yesterday 09:04 PM
2,028 Posts
Joined Aug 2014
Yesterday 09:04 PM
fawziYesterday 09:04 PM
2,028 Posts
would this work to spray car sensors to keep lenses and sensors clean ?
Pro
Yesterday 09:20 PM
2,329 Posts
Joined Nov 2010
Yesterday 09:20 PM
MasterRigger
Pro
Yesterday 09:20 PM
2,329 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
Yesterday 09:26 PM
2,329 Posts
Joined Nov 2010
Yesterday 09:26 PM
MasterRigger
Pro
Yesterday 09:26 PM
2,329 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
Yesterday 10:06 PM
398 Posts
Joined Jul 2018
Yesterday 10:06 PM
JonnyQuazandoYesterday 10:06 PM
398 Posts
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
1
Yesterday 10:08 PM
398 Posts
Joined Jul 2018
Yesterday 10:08 PM
JonnyQuazandoYesterday 10:08 PM
398 Posts
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

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Yesterday 10:08 PM
398 Posts
Joined Jul 2018
Yesterday 10:08 PM
JonnyQuazandoYesterday 10:08 PM
398 Posts
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
1
Today 05:00 AM
1,101 Posts
Joined Aug 2012
Today 05:00 AM
Wmgrant01Today 05:00 AM
1,101 Posts
Good old hard shell Turtle wax is the best for your windshield it will bead water for months
Today 05:01 AM
1,101 Posts
Joined Aug 2012
Today 05:01 AM
Wmgrant01Today 05:01 AM
1,101 Posts
Good old hard shell Turtle wax is the best for your windshield it will bead water for months

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