Stanley Foam Gun Cleaner Review (2025): Fast, 360° Cleaning for Uncured Polyurethane Foam and Spray Foam Guns

If you’re using a pro-style spray foam gun for insulation, the difference between a smooth next job and a gummed-up trigger often comes down to how you clean your equipment. The Stanley Dispensing Gun Cleaner is a solvent-based aerosol formulated to dissolve and flush away uncured polyurethane foam—on the gun adapter, aerosol valve, and surrounding mess—so you can keep working efficiently and protect your tools.

Check pricing and availability here: Stanley Foam Gun Cleaner.

What Stands Out

• Potent solvent for uncured foam: Quickly dissolves fresh polyurethane foam residues before they harden.
• Versatile application: Designed for the gun adapter and aerosol valve; also tackles overspray and drips while they’re still wet.
• Works in any position: A user-friendly spray activator lets you spray at virtually any angle—helpful for hard-to-reach spots on and around the gun.
• Ozone-friendly propellant: Uses a propellant gas that’s gentler on the ozone layer than older formulations.
• Important limitation: Not for cured foam. Once foam fully cures, you’ll need mechanical removal.

Explore details or buy on Amazon: Stanley dispensing gun cleaner for uncured polyurethane foam.

Who It’s For

• Pros and DIYers using canister-based polyurethane foam guns (insulation, gap filling, window/door setting).
• Anyone who needs a reliable way to flush a spray foam gun at the end of the day or between cans.
• Job sites where cleanup speed matters and access angles are awkward.

Real-World Performance and Ease of Use

The Stanley cleaner behaves like a dedicated foam-gun solvent should: fast-acting on fresh foam, thin enough to flush internal passages, and strong enough to cut tacky residues on the gun’s exterior and the can valve.

The “works in any position” actuator is the unsung hero here. Foam guns collect residue in weird places—under the barrel, behind the trigger, around the adapter threads. Being able to spray with the can inverted or sideways helps you target these angles without drips or sputters.

Note: As with all foam cleaners, effectiveness drops sharply once foam cures. Clean sooner rather than later.

Step-by-Step: How to Clean a Spray Foam Gun with Stanley

• Ventilate the area. Wear nitrile gloves and eye protection. Keep away from flames and ignition sources.
• Depressurize the gun. Close the flow control, then gently trigger the gun into a safe container to release pressure.
• Remove the foam can. Keep it upright to avoid spills.
• Attach the cleaner. Thread the Stanley Foam Gun Cleaner to the gun adapter.
• Flush the barrel. Open flow slightly and pull the trigger into a waste container until the discharge runs clear. Pause 30–60 seconds to let the solvent work, then flush again.
• Clean the exterior. Use the can’s spray activator to mist the trigger, adapter threads, nozzle, and any fresh drips. Wipe with a disposable cloth.
• Remove the cleaner can. Trigger once more to clear residual solvent.
• Store the gun. If you’re pausing work, either leave a foam can attached per your gun’s instructions or store the gun clean and dry.

Pro tip: For stubborn fresh residue on metal parts, apply cleaner, wait 1–2 minutes to soften, then wipe. Repeat if needed.

What This Cleaner Can’t Do

• It won’t dissolve cured foam. Fully cured polyurethane requires mechanical removal (scraping, careful cutting) and may permanently mar finishes. Clean early to avoid this.
• Sensitive surfaces may be damaged. As a strong solvent, it can attack finishes, paints, plastics, rubber, and sealants. Test on a small, hidden area first.

Safety and Handling

• Highly flammable solvent aerosol. No smoking; keep away from sparks, pilot lights, and hot work.
• PPE: Use gloves and eye protection; provide ventilation or use outdoors.
• Disposal: Collect spent solvent and residues per local regulations. Do not pour into drains.

Why Use a Dedicated Foam Gun Cleaner?

• Formulated to cut uncured PU foam quickly and flush the gun’s internal passages.
• Convenient delivery: aerosol plus an angle-friendly actuator makes spot-cleaning fast.
• Protects tool lifespan: regular flushing helps prevent sticky triggers, blocked barrels, and damaged seals.

While some folks reach for generic solvents (like acetone), a purpose-made cleaner like the Stanley spray foam gun cleaner on Amazon is more convenient for on-tool flushing and controlled application.

Tips and Best Practices

• Clean immediately after use, especially if you’re switching foam types or pausing for more than 10–15 minutes.
• Keep a dedicated “waste” container or lined bucket for flushing.
• Avoid soaking rubber or plastic parts for extended periods; apply and wipe quickly.
• If you must pause mid-job, leave a foam can attached (per gun manufacturer guidance) to keep air and moisture out of the system.

Pros and Cons

Pros	Cons
Dissolves uncured polyurethane foam quickly	Will not remove cured foam
Works at any angle for hard-to-reach areas	Strong solvent may damage sensitive surfaces/finishes
Designed for gun adapter, aerosol valve, and fresh spills	Flammable aerosol; requires PPE and ventilation
Ozone-friendly propellant	Effectiveness depends on cleaning promptly

Frequently Asked Questions

• Can I use it on cured foam?
  No. Cured foam requires mechanical removal. Use the cleaner while foam is still uncured/tacky.
• Will it damage paint or plastics?
  It may. This is a strong solvent. Test first and avoid prolonged contact with sensitive surfaces.
• Is it compatible with my foam gun?
  It’s designed for spray foam gun adapters and aerosol valves used with polyurethane foam. Most pro-style guns accept cleaner canisters, but verify compatibility with your gun’s manufacturer.
• Can I leave cleaner in the gun for storage?
  Generally, no. Flush with cleaner until clear, then expel remaining solvent and store per your gun’s instructions.

The Bottom Line

For anyone running polyurethane foam through a dispensing gun, this cleaner is a practical, job-saving essential. It flushes uncured foam quickly, reaches awkward angles, and helps keep your tool reliable for the next task. If you want simple, effective cleanup without improvising with bulk solvents, the Stanley Dispensing Gun Cleaner is a solid pick.

Ready to add it to your kit? See the latest price: Buy the Stanley foam gun cleaner on Amazon.

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