Yes, it is generally necessary to clean a car spray foam gun after each use. Here’s why:

1. Prevent Clogging: Foam can harden inside the gun if left untreated, leading to clogs that are difficult to clear.

2. Maintain Performance: Regular cleaning ensures the gun functions smoothly and delivers consistent spray patterns.

3. Extend Lifespan: Cleaning prevents build-up that can cause wear and tear on the internal components.

4. Ensure Quality: A clean gun helps maintain the quality of the foam application, ensuring better adhesion and finish.

Taking a few moments to clean the gun after each use will save you time and effort in the long run!

There are few hard and fast rules to follow when it comes to proper firearm cleaning. It's widely accepted that to preserve the firearm itself and keep it safe for firing, it should be lightly cleaned after each use and deep cleaned periodically and/or before storage.

If you do use corrosive ammo, it's best to clean your handgun after each use. Residual fouling buildup: Each bullet that passes through your gun creates fouling residue in the barrel. They leave behind remnants of carbon from the gunpowder, as well as trace amounts of lead and copper.

Clean your firearms after every use to keep them in top condition. This will help ensure that the action functions safely and properly and the ammunition performs as it should. Work on a cleared table or bench. Always give cleaning your full attention.