Best Foam Cannon Soaps: Time To Wash Your Ride Right

These top cleansers produce shiny, glossy finishes.

Best Overall

Chemical Guys Honeydew Snow Foam Car Wash Soap

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Best Value

Mr. Pink Super Suds Maintenance Shampoo

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Honorable Mention

Bilt Hamber Snow Foam Car Wash Soap

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If you have a foam cannon, you know why it’s beneficial. If you don’t, you’re missing out. When using a bucket to hand wash your car or truck, there’s a good chance you will run out of suds part way through the process. A foam cannon provides a steady stream of suds, and it’s less likely to scratch the paint than a wash mitt. In addition, foam cannons produce a thick, rich lather that can’t be reproduced with traditional soap and a bucket, and you’ll get the job done more quickly. In sum, foam cannons have a lot of advantages. However, you need to use the proper soap in order to get the best results. There are many brands available online and in stores, but they’re not all created equally. We include some of the best options in our buying guide below.

Our Methodology

We took many factors into consideration when compiling our list of the best foam cannon soaps. First, we chose brands that are well known with good reputations among car enthusiasts as well as regular citizens. We avoided products by unknown manufacturers or that had less-than-stellar reviews. We made sure that the products delivered what they promised by consulting user feedback. We did not personally test every product in our guide, but real-world results played a big part in how they landed on our list. In addition, we made sure to include items in a wide range of prices, so people with varying budgets have options and won’t be constrained because a product is too expensive. To learn more about our methodology, go here

Best Foam Cannon Soaps: Reviews & Recommendations

Best Overall

Chemical Guys Honeydew Snow Foam Car Wash Soap

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Best Value

Mr. Pink Super Suds Maintenance Shampoo

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Premium Pick

Bilt Hamber Snow Foam Car Wash Soap

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Most Eco-Friendly

Meguiar’s Hyper-Wash Foaming Car Wash

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Best Shampoo and Conditioner

Meguiar's Gold Class Car Wash Shampoo and Conditioner

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Best Scent

Sun Joe Premium Snow Foam

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Best Shine

Citrus Wash u0026 Gloss Concentrated Auto Shampoo

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Honorable Mention

Adam's Ultra Foam Shampoo

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Our Verdict on the Best Foam Cannon Soaps

Our top pick is the Chemical Guys Honeydew Snow Foam Car Wash Soap, which can be used on a variety of surface areas and is pH neutral, so it won’t harm any protective coatings, such as wax or sealants. If you’re looking for a more budget-friendly option, consider the Mr. Pink Super Suds Maintenance Shampoo.

What to Consider When Buying Foam Cannon Soap

When choosing a foam cannon soap, it’s inadvisable to use products that aren’t specifically designed or safe to use with the device. So, first, make sure the cleanser is compatible with a foam cannon. Also, check to see that it is pH neutral and generates enough cleaning power to remove dirt and debris from your vehicle. 

Foam Cannon Soap Key Features

High in Concentration

Soap for foam cannons comes in a variety of different configurations. Some formulas are concentrated, so you have to dilute them with water, while others you can use straight from the bottle. Make sure to read the instructions carefully to determine whether you have to mix the formula with H2O or use it as is. Foam cannons can use a lot of formula to produce thick, sudsy foam, so take that into consideration when choosing a product. Look for brands in which a little goes a long way, so you spend less money.

pH Balanced Formula

The pH of a product indicates its acidic or alkaline content. An item with a pH of 0 is entirely acidic, while one that is 14 is entirely alkaline. The sweet spot for car cleansers is 7, making it pH neutral. That means it will not harm any protective coatings on your vehicle, such as wax or sealant. In addition, it won’t damage other parts of your vehicle, such as the plastic trim. pH neutral products are designed so your paint won’t peel or fade. Most foam cannon soaps are pH neutral, but it’s a good idea to check the specs just in case before making a purchase.

Cleaning Power

Some foam cannon soaps are better at cleaning your vehicle than others. Some produce thicker, more luscious foam, which helps lubricate the paint and prevent streaks, swirl marks, and scratches from occurring. However, some pre-wash products produce little foaming action but still do a great job of preparing your vehicle for a thorough cleaning. The best way to see if a product cleans effectively and produces the right amount of suds is to look at user feedback.

Foam Cannon Soap Pricing 

The cost of foam cannon soaps varies widely, mostly depending on the size of the bottles. Obviously, smaller containers that are 4 or 16 ounces are going to be cheaper than most 1-gallon options. You can get a foam cannon soap for less than $10, but it will not last nearly as long as, say, a concentrated, 128-ounce option. Some higher-end car washes can cost $50 or more, but you will be able to wash your vehicle multiple times before running out. Smaller bottles are a good way to check to see if the product meets your expectations, and you don’t have to invest too much to see if it suits your needs.

Tips and Tricks

As with something you do for decades upon decades, you pick up a few tips and tricks along the way in terms of selecting the right product, and/or using it. That’s the case with us and the best foam cannon soaps. To help you bridge the information gap, here’s a selection of what we’ve learned along the way.

  • Before activating the foam cannon, rinse your vehicle thoroughly and remove any large chunks of grime.
  • For the best results, make sure to use a high-quality pressure washer with your foam cannon. Both gas and electric washers have their pros and cons, so do your research in advance.
  • If possible, use warm water because it will facilitate thicker foam and suds.
  • To avoid calcium deposits, thoroughly rinse the foam cannon with clean water after you use it.

FAQs 

You’ve got questions. The Drive has answers!

Q: What PSI is good for foam cannon?

A: That depends on the type of pressure washer you are using. Consult the operating manual to see what PSI works best for your needs.

Q: How do you get thick foam from a foam cannon?

A:  First, make sure you have a good pressure washer, nozzle, and soap. Also, check that the power of the machine matches the foam cannon. In addition, warm water aerates the soap and mixture to produce thicker suds.

Q: Can I use dish soap in a foam cannon?

A: Dish soap can remove protective coatings, such as wax and sealant, so it’s a good idea to use soap specially formulated for vehicles for the best results.

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When she's not at the keyboard, Noelle unwinds by exploring the northeast in her classic German sports car or custom Indian Scout. She's written about the joy and hardships of vintage car ownership for Porsche Club of America's e-Brake News. You can read some of her articles about the motorcycle lifestyle in an issue of MotoSpirit magazine.