How to Use a Foam Cannon Step-by-Step

Foam cannons make washing your car safer, faster, and more fun—but only if you use them the right way. Here’s a simple step-by-step process that anyone can follow, even if it’s your first time.

What You’ll Need

• A pressure washer (1000–3000 PSI works best)
• A foam cannon attachment
• The Super Soaper
• Orange Wash Microfiber Towel
• Massive Drying Towel

Step 1: Mix Your Soap

Add 2–4 ounces of The Super Soaper into the foam cannon bottle. Fill the rest with clean water. Shake gently to mix. For help with ratios, see our foam cannon soap ratio guide.

Step 2: Rinse the Car

Before you foam, rinse the car to knock off loose dirt and cool the surface. This helps the foam cling longer and work better.

Step 3: Foam the Vehicle

Start at the bottom and work your way up to maximize cling time. Cover every panel evenly with foam. Don’t forget the wheels, trim, and grill area.

Step 4: Let It Dwell

Let the foam sit for 3–5 minutes. This allows the surfactants to loosen dirt and grime. Do not let the foam dry—rinse before that happens, especially in the sun.

Step 5: Contact Wash (Optional)

Use the Orange Wash Microfiber Towel for gentle wiping if needed. Always wash from top to bottom. The foam acts as a lubricated buffer layer to reduce swirls.

Step 6: Rinse Thoroughly

Rinse the entire car from top to bottom, removing all foam residue. Make sure you hit crevices and trim areas where foam can get trapped.

Step 7: Dry Completely

Use the Massive Drying Towel to dry the vehicle. Its absorbent design reduces the chance of streaks or water spots.

Pro Tips

• Adjust your foam cannon nozzle for a wide fan pattern—don’t blast a pinpoint stream.
• Keep your pressure washer nozzle 2–3 feet from the surface.
• Work in the shade if possible to extend foam dwell time.

Want More Help?

• What Is a Foam Cannon?
• Can You Use a Foam Cannon Without a Pressure Washer?
• Best Soap for Foam Cannons

FAQs