The Best Soap to Use in a Foam Cannon

Using a foam cannon is a game changer—but only if you're using the right soap. The wrong one will give you watery results and wasted product. The right one? Thick, clinging foam that makes washing safe and satisfying.

Why Not All Soaps Work in Foam Cannons

Foam cannons rely on pressure and surfactants to whip soap into dense, shaving-cream-like foam. If your soap isn't designed to foam—or it requires too much product to get the job done—it won’t work well in a cannon.

Many generic or multi-purpose car soaps produce bubbles but not proper clinging foam. That means poor dwell time, ineffective cleaning, and more risk of swirl marks during your contact wash.

What Makes a Good Foam Cannon Soap?

• High Foaming Ability: You want dense, thick foam that clings and dwells.
• Paint-Safe pH Balance: So it won’t strip wax, ceramic spray, or sealants.
• Lubricity: Foam should be slick to reduce scratching when contact washing.
• Cost Efficiency: Should work well with just a few ounces per fill.

The Super Soaper – Built for Foam Cannons

The Super Soaper was designed specifically for foam cannons and touchless-style washes. It produces incredibly thick foam, even with just 2–4 ounces of product, and it clings to paint for longer dwell times and better cleaning.

Unlike cheap soaps that sheet off or require excessive product, The Super Soaper strikes the perfect balance between performance and efficiency. It also rinses clean and is safe on wax, sealants, and ceramic sprays like Tough As Shell.

How to Use The Super Soaper in a Foam Cannon

1. Add 2–4 ounces of The Super Soaper to your foam cannon bottle.
2. Fill the rest with clean water.
3. Shake gently, then connect to your pressure washer.
4. Foam the car from top to bottom and let it dwell for 3–5 minutes.
5. Follow with a soft contact wash using an Orange Wash Microfiber Towel.

Pro Tip

If you’re foaming your car outside on a hot day, work in sections or foam the whole car and rinse quickly to avoid soap drying on the surface. Then dry it all off with a Massive Drying Towel to prevent water spots.

Try It Yourself

• The Super Soaper
• Orange Wash Microfiber Towel
• Massive Drying Towel

Want to learn more? Don’t miss our Foam Cannon 101 post and why the two-bucket method is outdated.

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