If you already have a car pressure washer, you can improve your washing technique by purchasing a foam cannon. The purpose of these attachments is to act as a pre-clean because it removes any loose dirt before washing the car.

The best foam cannon is the Chemical Guys EQP 310 TORQ Professional with its advanced foaming technology, adjustable nozzle and durable design.

Popularity of the foam cannon has exploded within the detailing community due to the enjoyment of washing your car with foam and the great photos you can take. The foam itself sticks to the car and soaks up all of the debris for safe removal.

Best Car Foam Cannon

The purpose of foam cannon soap is to act as a pre-cleaning technique before actually washing your car. It loosens the dirt and other grime, which can then be rinsed off after a specified dwell time. A common misconception is that people think that the foam cannon soap is a car wash soap but this is not the case.

Most foam cannons allow users to adjust the water to product ratio for more foam as well as changing the spray pattern width. Some cannons can use a basic garden hose but you will never be able to achieve thick foam without a pressure washer.

If you are looking to add an element of fun to washing your car as well as improve the safety of washing your car, these are the answer. Below is a list of the best foam cannons for your pressure washer that provide effective spraying of foam.

Chemical Guys EQP 310 TORQ Professional

Chemical Guys is a brand that is very reputable among detailing enthusiasts and professionals. The TORQ professional foam cannon comes with a high price tag but it comes packed full of features and the latest technology for thick suds.

Features of the Chemical Guys EQP 310 TORQ professional foam cannon include

• 32 ounce fluid tank that is protected against UV
• Fully adjustable nozzle for full coverage
• Uses advanced foaming technology
• Air injector controller
• Corrosion resistant brass and stainless steel components

This Snow Foam will work with any pressure washer to produce thick snow foam by adjusting the vertical jet nozzle. There is also an air injector controller that allows you to adjust the foam mixture of the large 32 ounce container.

Overall, the Chemical Guys EQP 310 TORQ Professional is the best foam cannon for thick foam. Although it is fairly expensive, it has been built to last with heavy duty components that you will struggle to find on cheaper alternatives.

SudMagic Foam Cannon Pressure Washer Gun

The SudMagic has a heavy duty design and uses a patented brass threaded bottle, which will not strip unlike cheaper plastic alternatives. Even the bottle is built to last as its made from a strong HDPE, which will be able to withstand heavy impacts and UV rays. Sud Magic include a lifetime warranty on this foam cannon, which shows how much the brand is committed to durability.

Other features of the SudMagic Foam Cannon Pressure Washer Gun include:

• Valve to adjust the thickness of the foam
• Adjustable nozzle for controlling the height
• Durable brass threaded bottle
• 1/4 inch male quick connector
• Suitable for pressure washers up to 3,200 PSI
• Measurement on bottle for adding correct amount of soap

SudMagic have focused upon creating a heavy duty foam cannon and they have succeeded. It has all the features found on the more expensive branded alternatives. Overall, it is the best foam cannon for the money and it even comes with a lifetime warranty for peace of mind.

Adam’s Polishes Red Foam Cannon

Another premium foam cannon is by Adam’s Polishes, which is designed to produce the thickest snow foam possible. The brand also offers a snub nose as an additional extra, which makes connecting to the pressure washer far easier, which may be a requirement for many.

Features of the Adam’s Polishes Red Foam Cannon include:

• Adjustable spray pattern
• 32 ounce container
• Efficient spraying that uses less soap
• Adjustable air intake valve
• Stainless steel and brass components
• Max PSI of 3,190
• Made in the USA

As with the Chemical Guys EQP 310 TORQ alternative above, this is a foam cannon targeting enthusiasts and professionals. The high price tag will put many people off but the adjustable spray pattern and air intake is very desirable as it makes producing thick suds very easy.

MTM Hydro Professional with Bayonet

The MTM Hydro Professional Adjustable Foam Cannon uses a high pressure water flow, detergent and air to produce thick snow foam. It is able to spray over 20 feet in length for those looking to have a bit of fun whilst washing or require distance for washing large vehicles such as RVs.

Other features of the MTM Hydro Professional Adjustable Foam Cannon include:

• 2,600 max PSI
• 34 ounce bottle
• Shoots up to 20 feet
• 1.10 mm nozzle
• Adjustable spray pattern and flow

If you own a low powered pressure washer but still require a foam cannon, the MTM Hydro is the best option. Included with the foam cannon are 3 different attachments that allow you to connect this cannon to various pressure washers such as Karcher, Sun Joe, AR Blue and other models.

MATCC Adjustable Snow Foam Lance

The MATCC snow foam gun is the cheapest within this article but still performs as well as the premium alternatives. It even uses heavy duty brass connectors to improve the longevity and ensure that you get the most bang for your buck.

Features of the MATCC Snow Foam Gun include:

• Maximum pressure of 3,000 PSI
• Core is made from quality brass
• Nozzle to adjust spray pattern
• Adjustable dial for altering the amount of spray
• 1/4 inch quick connection
• 35 ounce fluid container

Overall, this snow foam is the best value snow foam lance on the market and will do everything that the more expensive snow foam lances will do. It will work with pressure washer from 1,000 to 3,000 PSI and is fairly universal.

Foam Cannon Buying Guide

Snow foam is a washing mixture that you spray onto your car as a “pre-cleaning” technique. It removes loose dirt and grime to help prevent scratches when you come to washing the car. It also makes it easier to wash your car and it is great fun.

You can use a garden hose for spraying some snow foam onto your vehicle but you will never be able to achieve thick foam. You will need a pressure washer foam gun to produce the desirable thick foam. Once sprayed over the car, you should allow the foam to sink into the dirt and then rinse it off.

When choosing the different types, we highly recommend that you choose one that clearly states that it can be used with foam cannons. The buying guide below should influence your buying decision with the factors you should be considering.

Adjusting the Thickness and Spray

All of the recommended foam cannons above have the ability to adjust the way the spray comes out of the reservoir. Although making the foam thicker doesn’t correlate into a cleaner car, it does provide excellent photo opportunities of your car covered in snow foam.

Reducing the amount of water in the mixture with the snow foam product is how it is made thicker. The cannon will have an adjustable knob that alters the amount of water going from the pressure washer into the snow foam cannon.

On top of adjusting the thickness of the foam, adjusting the vertical size of the spray is just as desirable. You will want to reduce the amount of wastage of snow foam because after all, it is not the cheapest washing product out there.

Many will have a vertical jet nozzle that you can control and easily move to reduce or increase the size of the spray.

Durability

The amount of pressure that passes through a foam cannon can be immense and start from 800 all the way to around 4,000 PSI. It is important to check whether your pressure washer will not break through the snow foam cannon reservoir.

The most common flaw with cheap and even the best brand snow foam cannon is that they can crack at the top opening. If the bottle is plastic threaded, avoid it as this will not be durable and it will strip through. The best foam cannon examples will have brass threaded bottles that will not break under pressure.

Foam Cannon Compatibility

As there is a wide variety of pressure washers on the market, its important that you find a foam cannon compatible with your specific washer. Most come with adapters to fit the major brands such as Karcher, Snow Joe, AR Blue and others.

Another compatibility issue that may arise is the fact some foam cannons require a minimum pressure in order to work. Some can be as low as 600 PSI whereas other may require at least 1,000 PSI in order to work.

Before purchasing a foam cannon, you should always check which connector you have and the pressure it provides so that your not left disappointed.

How to use a Foam Cannon

Using the foam cannon is fairly simple and you will need foam soap, the cannon, a pressure washer and water to begin. Once you have what is needed, you can begin setting up your snow foam cannon. Below are brief steps to using your foam cannon.

1. Use the specified measurements of soap and water
2. Adjust the amount of foam spray
3. Adjust the thickness of the foam (less water = more foam)
4. Start applying snow foam evenly all round the vehicle
5. Let the foam dwell for at least 10 minutes
6. Rinse of the snow foam from the vehicle

Using a foam cannon, you can easily cover most cars in less than a few minutes. The only time consuming part is waiting for the foam to sink into the dirt. However, this of course gives you enough time to get a photo of the car covered in foam.

Conclusion

It is important to note that using a foam cannon is suitable for a pre-clean. This means it removes dust, dirt and other debris prior to washing your car, which make it safer to wash. It reduces the amount of debris that may cling onto your car wash mitt, which is great for reducing any damage to the paintwork such as swirl marks.

There are premium and cheap foam cannons available but you should always be aware that cheap alternatives can break easily. Premium examples such as Adam’s and Chemical Guys have been designed by professionals for the best results. However, the price tag is fairly high, which will put many people off.

Our recommendations cover a range of different budgets and only include non-plastic threaded bottles. This is a common fault of cheap foam cannons and is something you will want to avoid.

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