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MJJC Foam Cannons:
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Snow Foam Cannons and Soap
  • MJJC Foam Cannon S V3.0
  • MJJC Foam Cannon Pro V2.0
  • MJJC Snow Foam Shampoo
  • Chemical Guys Mr. Pink
  • Kochchemie Gentle Snow Foam
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    MJJC Foam Cannon S V3.0

    Welcome to my review of MJJC Foam Cannons, where I will explore the features and performance of these top-tier tools for automotive detailing.
    In automotive detailing, a foam cannon is a crucial tool that attaches to a pressure washer to create a thick, clinging soapy foam, also called snow foam. This foam encapsulates dirt and grime, making it easier to rinse away without direct contact.
    Automotive detailing enthusiasts aim to touch the vehicle as little as possible to avoid marring or swirling the paint. By using a foam cannon, they can pre-soak the vehicle with foam, lifting contaminants off the surface. This minimizes the need for physical scrubbing, significantly reducing the risk of scratches and paint damage. The foam provides a lubricated barrier between the dirt and the paint, allowing for a safer and more efficient wash process. Additionally, the even coverage of foam ensures that all areas of the vehicle are adequately cleaned, enhancing the overall effectiveness of the detailing process.
    Detailers often prefer thick, sticky foam over wet, runny foam. Thick foam clings to the vehicle's surface longer, allowing the cleaning agents more time to break down dirt and grime. This extended contact time improves the cleaning process and provides better lubrication, minimizing the risk of scratches during washing. However, some detailers, even if to a lesser extent, prefer runny, wet foam because its heavier consistency can help drag dirt down off the vehicle's body panels, aiding in the removal of contaminants without the need for scrubbing.
    Using a foam cannon in automotive detailing offers several benefits:
    1. Effective Cleaning: Foam cannons generate thick, clinging foam that encapsulates dirt and grime, lifting them off the surface for a more thorough clean.
    2. Surface Protection: The foam acts as a lubricant, reducing the risk of scratches and swirl marks during the washing process.
    3. Time Efficiency: Applying foam with a cannon is quicker and covers more area than traditional hand washing methods.
    4. Even Coverage: Ensures an even distribution of soap, enhancing the cleaning process.
    5. Enhanced Appearance: Produces a professional-looking finish, giving the car a deep, clean shine.
    These benefits make foam cannons a valuable tool for achieving a high-quality, efficient, and safe car wash.
    Two Process Types:
    In automotive detailing there are two main types of foaming:
    A) Pre-Rinsing with Foam:
    Purpose: The goal of pre-rinsing with foam is to loosen and lift surface dirt and grime before the main wash. This step helps reduce the risk of scratching the paint during the wash process.
    Foam Characteristics: For pre-rinsing, a foam that clings well to the surface is ideal. This allows the cleaning agents time to work on breaking down contaminants.
    Soap Types: Use a foam-specific pre-wash or snow foam soap. This can be either Acidic for removing mineral deposits, water spots, and brake dust OR Alkaline which is more effective for heavy-duty cleaning, such as removing grease, oil, road tar or film. These are formulated to produce thick, clingy foam that effectively loosens dirt without necessarily providing a high level of lubrication needed for direct washing.
    B) Washing with Foam:
    Purpose: The main wash involves using foam to directly clean the vehicle's surface after the pre-rinse has removed the majority of loose contaminants.
    Foam Characteristics: For washing, the foam should be both lubricating and effective at suspending and removing dirt.
    Soap Types: Use a high-quality pH-Neutral car wash soap designed for use with foam cannons. These soaps create rich, lubricating foam that helps safely lift and remove dirt while washing, minimizing the risk of scratching and being gentle on waxes, sealants and ceramic coatings.
    Both of these types contribute to a thorough and safe cleaning process, ensuring your vehicle’s paint remains in excellent condition.
    In 2011, Michael, Jeremy, Justin, and Calvin co-founded a company to produce their own foam lance and put the first letters of their first names into the brand "MJJC".
    MJJC's foam cannons are known for their superior foam generation as well as durable construction. With solid brass components and user-friendly features, these foam cannons deliver excellent value and efficiency.
    MJJC currently offers two high-end foam cannons, including the Pro V2.0 and the newer S V3.0. Let's look into the details and see how they compare.
    MJJC Foam Cannon S V3.0 w 1/4" QD plug:

    What’s New with S V3.0:
  • New Structure – easier and smoother to control 360-degree spray.
  • New Straw Tube – weighted straw system is super flexible and easier to consume all the liquid in bottle.
  • New Bottle and Cap – easier to attach bottle to foam cannon body.
  • New Foam Technology – thicker and shaving cream foam.
  • MJJC Connection/Fitting – easier and faster to attach fitting, no need glue or ptfe tape.
  • MJJC Foam Technology – less noise, less soap but thicker foam.
  • MJJC Style Bottle – less possibility to tip over. 1 Liter CLEAR Solution Tank with measuring guide
  • Specifications:
  • Weight: 0.7 kg
  • Working Pressure psi: 1300-3600psi
  • Body: Solid Brass
  • Variable Connector Options: Variable Options Available
  • Connector Sealing: No need for teflon tape
  • Leak Proof Cap: No
  • Quick Attach Bottle: Yes
  • Spray Blade: New Generation
  • Foam Direction: 360 Degree
  • Assembled nozzle orifice: 1.25mm
  • Spare nozzle orifice: 1.1mm
  • Mesh Filter: New Generation Sandwich Filter
  • Foam Thickness: ✪✪✪✪✪
  • Spray Fan: Adjustable Width
  • Adjustable Foam Thickness: Adjustable Top Knob
  • Tank Capacity: 1100ml
  • Stand Stabability: ✪✪✪✪✪
  • Suction Tube: Soft with gravity ball
  • Tube Filter: Stainless Steel
  • Break Proof Ability:✪✪✪✪

  • The MJJC Foam Cannon S V3.0 is a top of the line product that is very servicable. They sell a host of replacement parts on their website to ensure it continues performing optimally such as:
  • Top Knob to Adjust Foam Thickness: This part allows you to control the foam density and is essential for customizing your foam application​
  • 1-Liter (1000ml) clear bottle: A replacement bottle for holding the cleaning solution.
  • Replacement Cap: with attachment for brass body
  • Spare Cap: Just a cap for the bottle, no attachment for brass body
  • Rubber O-Ring for Intermediary Adapter: This small but crucial part ensures a tight seal in the adapter, preventing leaks​
  • Spare White Rubber O-Rings Kit: Replacement O-rings for the bottle, ensuring a proper seal and preventing leaks during use​
  • Chemical Suction Tube: This tube is responsible for drawing the cleaning solution from the bottle into the cannon, ensuring consistent foam production​
  • Mesh Filter: Upgraded for better self-cleaning ability, it helps ensure that the foam cannon operates smoothly and consistently​
  • White Foam Fan Controlling Blade Set: This set helps in adjusting the spray pattern of the foam, allowing for a wider or narrower application depending on your needs​
  • Intermediary Adapter: this is where your quick disconnect would attach
  • Connection Bolt between Cannon Body and Cap
    The MJJC Foam Cannon S V3.0 is available in several configurations to fit different pressure washers. Here are the various configurations you can choose from:
  • 1/4″ Quick Connector Adapter (this is the version I have)
  • M22x15mm male thread
  • Karcher K Series
  • Bosch AQT, Aquatak, and Black&Decker
  • Nilfisk, Gerni, and Stihl
  • Lavor, Parkside
  • Italy PA Brand
  • Karcher HD Series
  • New Eazy Force/Eazy Lock Karcher HD5, HD6, HD7, HD9
  • Kranzle
  • Kew Alto old Stihl
  • New model Nilfisk, Gerni, Stih
  • Lavor, Parkside, Sterwins, Foreman, Hitachi, Sorokin, Copokin, Hammer, Elitech and Champion
  • Old Bosch Aquatak 110 and Foma
    As you will see in the video review at the very bottom of this page, the foam that both of these cannons produce is industry leading. Very thick with long dwell time. The cannons are easy to fill with soap and water due to the large opening at the top. Their wide bases are very stable. They look to be very durable and are servicable with readily available parts. I do not hesitate to recommend MJJC products.

    MJJC Foam Cannon S V3.0 w 1/4" QD plug

    MJJC Foam Cannon PRO 2.0 w 1/4" QD plug:

    When I was using my Karcher pressure washer, a low gallons per minute (1.35gpm) type, I swapped out the factory installed 1.25 orifice for the included 1.1 orifice size, as it produces more foam for these types of pressure washers. The smaller orifice size will increase the pressure and make the pressure washer work a bit harder, drawing more amperage from your electrical circuit. I re-wired my garage to have 20amp circuits, which is best for pressure washing rather than standard 15amp service. With the Karcher 2100ps I had no issues.
    When upgrading to the Active 2.0 pressure washer, I have swapped back to the 1.25 orifice size as Active does not recommend anything smaller than that otherwise you risk overworking their pressure washer pump.
    What’s New with the New Generation Foam Cannon Pro V2.0:
  • 360 Degree Spray Patterns.
  • Easier to foam the top and chassis of your vehicle.
  • Better Foam Fan.
  • New Generation Foam Technology.
  • Thicker foam with less shampoo.
  • Up to 30% thicker foam.
  • Less noise.
  • Works with as low as 90Bar(1300Psi) pressure washers.
  • New Connection/Fitting.
  • Easier and faster to attach fitting, no need tape or glue.
  • New Tank and Cap.
  • More than 1Liter capacity to wash bigger vehicles.
  • Easier to attach with foam cannon body.
  • Tank cap is leak proof even when you put upside down.
  • More stable, robust, and durable.
  • Specifications:
  • Weight: 0.7 kg
  • Working Pressure psi: 1300-3600psi
  • Body: Solid Brass
  • Variable Connector Options: Variable Options Available
  • Connector Sealing: No need for teflon tape
  • Leak Proof Cap: Yes
  • Quick Attach Bottle: No
  • Spray Blade: New Generation
  • Foam Direction: 360 Degree
  • Assembled nozzle orifice: 1.25mm
  • Spare nozzle orifice: 1.1mm
  • Mesh Filter: New Generation Sandwich Filter
  • Foam Thickness: ✪✪✪✪✪
  • Spray Fan: Adjustable Width
  • Adjustable Foam Thickness: Adjustable Top Knob
  • Tank Capacity: 1200ml
  • Stand Stabability: ✪✪✪✪✪+
  • Suction Tube: Soft with gravity ball
  • Tube Filter: Stainless Steel
  • Break Proof Ability:✪✪✪✪✪

  • As with the MJJC Foam Cannon S V3.0, the results you get from this foam cannon is unbelievable...thick, rich foam with long dwell time giving you plenty of time to get around the vehicle and perform your contact wash without all the foam running completely off the vehicle.

    MJJC Foam Cannon PRO 2.0 w 1/4" QD plug

    MJJC Foam - Car Wash Snow Foam Shampoo:

    This is the snow foam shampoo that MJJC has created to work ideally in their line of foam cannons. It is available in 20 ounce (600ml) bottles.
  • Super Thick Foam.
  • Super Staying Power, Stays on Paint Long.
  • Super Soft, Smooth and Slick.
  • Super Easy to Rinse Off.
  • Super Easy to Fill into Foam Cannon.
  • No Water Spots. No Residuals.
  • Refreshing cider aroma.
  • Applicable to all paint colors and ceramic coated vehicles.
  • Specifications:
  • pH: Neutral
  • Contains crude palm oil
  • No need for shaking
  • Shampoo/Water Mix Ratio for Foam Guns: 100ml shampoo/900ml water (3 ounces shampoo/30 ounces water)
  • Shampoo/Water Mix Ratio for Bucket Wash: 50ml shampoo/20L water (2 ounces shampoo/5 gallon water)
  • Recycable Components: Bottle, Inner Lid, Outer cap, Label
  • After using the MJJC snow foam shampoo in both these cannons, we found that the foam produced was indeed thick and rich as promised. My preference is to use a ph neutral soap such as this to prolong the life of my wax. I have not noticed any deterioration to the protection nor to the shine of my vehicle.

    MJJC Snow Foam Shampoo

    MJJC Snow Foam Shampoo

    Final Thoughts:

    In conclusion, MJJC's foam cannons, the Foam Cannon S V3.0 and Foam Cannon Pro V2.0, are standout products in the automotive detailing market. They deliver superior foam thickness and longevity, providing excellent cleaning power with minimal effort.
    I particularly appreciate the solid brass components, easy spin on - no wrench needed - type connection fitting, and stability of these cannons. The variety of fitting options ensures compatibility with many different pressure washers, making them versatile and user-friendly. Their construction is durable and their performance is highly effective.
    I highly recommended MJJC foam cannons for a top of the line, professional, swirl-free wash. I cannot say that one of the two iterations is a particular standout over the other. They both produce incredible quality foam. It will simply come down to a matter of preference for which one you want to purchase.
  • Pro V2.0 bottle is probably more durable but S V3.0 is easier to read the measurements and see the liquid inside.
  • Pro V2.0 bottle has a larger mouth, but S V3.0 has the 1/4 quick turn feature.
  • Pro V2.0 bottle has a lower center of gravity and larger base, but S V3.0 happens to match my Blue pressure washer theme perfectly.
  • Both use a lot less soap than other in order to get maximum foam production.
    Stay tuned for future updates as I understand that they have a Foam Cannon Pro V3.0 under development.
    For the latest prices and availability, please follow the provided links.
    Video Review:

    0:00 Intro
    0:17 Snow Foam Cannons Overview
    1:58 Foam Cannon Prep
    3:24 Test 1 with Karcher & Mr. Pink
    7:17 Test 2 with Active 2.0 & MJJC Shampoo
    10:39 Outro

    Purchase here...MJJC Foam Cannons
    Use coupon code: 26C0022ZCMYV for 10% discount.


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