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The construction foam gun helps to precisely dose the composition and direct the hit in a particular gap, especially if it is deep and in a hard-to-reach place.

The foam gun helps to precisely do the composition and direct the hit in a particular gap, especially if it is deep and in a hard-to-reach place.

The Best Professional Gun for Construction Foam

Great Stuff Pro Foam Dispensing Gun

 4,9 Rating


  • Lightweight, high-strength aluminum body with a metal trigger.
  • No-drip dispensing.
  • Provides greater precision and access to hard-to-reach areas.
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The Foam dispensing gun is designed to create an airtight and moisture-tight seal between the gun and the can. This prevents the foam from curing and blocking the dispensing valve, letting you reuse the can for up to one month. When storing foam, always keep a gun securely attached to the top of the can. Features no-drip dispensing and pinpoint control of the bead size and restart ability. Pinpoint control of the bead size allows you to maximize the foam yield from every can.

How to Use and Care for Construction Foam Guns?

How To Choose Construction Foam Guns?

Buyer’s guide for the Construction Foam Guns

This review and guide provide information on some best construction foam guns you can find.

There are quite a few manufacturers of construction foam guns on the market, and the prices vary greatly. From a pure price point of view, the type of construction foam guns can be priced from $20 to $63.

The Best Construction Foam Guns For The Money

Construction Foam Guns

All our reviews are based exclusively on expert judgments or practical experience with most of the construction foam guns we have tested. We strive to make our guide as independent and as detailed as possible.

Construction Foam Guns in Comparison

GREAT STUFF PRO Dispensing Gun

  • Squeeze Foam in Tight Spaces.
  • The product is highly durable and handle.
  • Stainless steel check valve.

 4,8 Rating

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Durable gun for foam

Dispensing Gun comes with one package of these plastic tips. They fit snugly onto the smooth metal gun tip and allow you to easily dispense foam into small cracks and tight spaces. Accurate bead control and increased yield while providing a quick and convenient way to apply insulating foam sealant.

Preciva Professional Foaming Gun

  • Easy to clean.
  • The spring-triggered design allows you to precisely control the amount of foam.
  • Rugged and durable.

 4,9 Rating

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Accurate foam dosage

Precise control allows you to precisely control the amount of foam, reducing the economic consumption and waste of foam. Use the spring trigger and control knob to efficiently apply caulk and insulation foam to various surfaces. Foam insulation gun allows for one-handed use.

Foamnseal Polyurethane Foam Dispensing Gun

  • Adjustable foam output knob.
  • Less foam waste.
  • Foam shut off feature.

 4,8 Rating

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Foam processing in tight places

4” narrow plastic dispensing tip allows for more precise foam dispensing in narrow gaps. Attaching an 8” flexible plastic extension tube to the 4” narrow tip nozzle allows foaming in tight spaces and for extended reach. It is also ideal for filling door and window door jamb voids.

What Is Construction Foam Gun?

Polyurethane foam, also known as insulating, assembly, or construction foam depending on the region, has long been a common material in the craft and construction industry. Filler and insulating foam is mainly used to seal windows and door frames.

Durable and dimensionally stable, polyurethane foam can also be used when bonding wood, concrete, or plastic. Its positive properties make the insulation material in demand all over the world.

If you regularly use large quantities of polyurethane foam on a construction site or when renovating your home, you should definitely consider buying a quality construction foam gun.

When you work with a construction foam gun, you have the advantage of flexible and precise dosing of the pointed nozzle. The foam gun is especially useful when foaming certain cavities, such as small window joints, because it applies the polyurethane foam accurately and in small doses. This will prevent the foam from expanding too much when it is applied to the cavity, which can lead to rework or even loss of material.

What Are The Types Of Construction Foam Gun?

Usually, foam guns have one of two types of body: metal or plastic. Both materials – depending on their intended use – are differently suited for sealing windows, doors, or stairs.

There are several types of construction foam gun:

  • Metal construction foam guns.

Metal versions tend to be more stable and durable, so they can withstand the vibrations and falls that occur in everyday construction work without any problems. If you work in the professional construction industry and are looking for a durable tool with a scratch and impact resistant surface, this is a great option. However, make sure the metal body is rust-free to prevent deposits on the spray nozzle.

  • Plastic construction foam guns.

Plastic construction foam guns are not as stable and high dimensional stability as the metalwork tool, and they are less durable. The plastic construction foam guns with non-stick coatings are ideal for occasional home repairs. You’ll especially benefit from the non-stick surface of the foam gun, which ensures that foam residue won’t stick to the dispensing nozzle.


What should you look for when buying the construction foam gun?

If you regularly use large quantities of polyurethane foam on a construction site or when renovating your home, you should definitely consider buying a quality construction foam gun. By using a construction foam gun, you simplify your foam application in many ways.

When buying should pay attention to the following:

  • Body material.

If you are a hobbyist, you should pay special attention to the material when choosing a construction foam gun. A sturdy metal body is the best alternative to PTFE plastic with a non-stick coating because it increases the life of the dispenser gun.

  • The versatility of operation.

The construction foam gun must process one-component or two-component assembly foams.

You can use one-component polyurethane foam in a metal dispenser gun to seal window sills, fill wall joints, or secure insulation panels. Ensure sufficient humidity of at least 30 percent during the workflow to allow the polyurethane foam to cure of the outside in.

Two-component building foam, on the other hand, consists of two components that are mixed only when processed into building foam. Because one of the two components consists of a hardener, two-component building foam, which hardens quickly and requires no moisture, is suitable for closed-cell cavities.

The polyurethane foam used in the construction foam gun is not UV-resistant, so it should not be used in areas exposed to direct sunlight.

If you want to seal mostly large enclosed cavities, you should make sure that your inexpensive foam gun is suitable for the use of two-part assembly foams.

Be careful not to wet the surface, and shake the can before used to activate the hardener before attaching the can to the cartridge holder.

  • Barrel length.

The more inaccessible the area to be filled in the cavity, the longer the barrel of your personal the best foam gun should be. Sometimes it may be necessary to use a special professional dispenser gun with a gun barrel at least 16in-24in length when filling large cavities or when installing showers and tubs.

  • Ergonomic handles.

Ergonomic, one-handed handles make precise application easy. Two-component assembly foam in particular, which is stiffer than one-component assembly foam, cures faster. You must operate the foam gun accurately and carefully to hold the outgoing foam mass and distribute it in the right amount.

In this process, it is especially important to work with the foam construction gun with one hand. You must be able to adjust the adjusting wheel with one hand without having to grasp the ergonomic handle with your other hand.

When buying a foam gun, pay attention to the different types of handles. The rounded body handles fit better in your hand, so you can do precise filling jobs for long periods of time without interruptions, without changing hands.

How do I clean a construction foam gun?

The foam gun must be cleaned regularly. This prevents residue inside the foam gun from hardening and clogging. You can choose from a variety of detergents to clean the foam gun after use.

To clean the construction foam gun, follow these steps:

  • Use one special foam gun cleaner that comes with a threaded cap and spray nozzle.
  • Before spraying the solvent from the spray nozzle onto the threaded joint, first, remove the used or empty foam cartridge.
  • Allow the solvent to set for a short period of time.
  • Thoroughly wipe the foam gun from the outside with a rag.
  • To clean the foam gun from the inside, screw the cleaning cartridge onto the cartridge holder and activate the lever as if you were going to use construction foam. The foam gun will spray solvent through your system, which will squeeze out any remaining foam residue.
  • The inside of the foam gun becomes clean as soon as the only solvent comes out of the nozzle.

The started foam cartridge attached to the cartridge holder will not dry out because the stock foam gun is sealed.

Construction Foam Guns Price:


Under 20$

  • Preciva Professional Foaming Gun

Under 30$

  • Foamnseal Polyurethane Foam Dispensing Gun

Under 50$

  • Great Stuff Pro Foam Dispensing Gun

Under 70$

  • GREAT STUFF PRO Dispensing Gun


Today, the assembly foam is the most popular of the existing sealants. That is why all cylinders with professional assembly foam are available with a lid, which has the ability to install a pistol for building foam.

When working with professional foam guns, you do not need to painstakingly mask the surrounding areas, and apply polyurethane foam directly to the cavity without any preparatory work.

Using this device helps to quickly and economically perform construction work with construction foam.

FAQs- Construction Foam Guns

✅ How does a car gun for foam work?

The car foam gun is specially designed for car washing and can be used with all types of vehicles. It is also equipped with a rotary adjustment wheel and, as a 2-in-1 foam gun, can spray foam and water to clean the vehicle.

✅ How do you remove fresh construction foam from a spray gun?

Fresh construction foam should be removed from the surface of the spray gun with a cloth as soon as possible before it hardens. If the construction foam has already dried, you can use a special foam remover to remove the foam from the surface.

Avoid using a knife or spatula to remove the foam from the gun. These tools damage the surface structure of the construction foam gun, which can result in material fatigue.

✅ What are common mistakes when using foam guns?

When working with single-component installation foams, there are a lot of mistakes that occur. The surface you are applying the foam needs to be well moistened so that it will cure completely.

You should also keep in mind that building foam swells after you apply it. If you apply too much pressure with the foam gun, the foam from the gun will react with the humidity in the room, swell a lot and damage the foam gun and the building fabric. Therefore, always handle the foam gun carefully and, if possible, use construction foam that is not subject to expansion pressure.

✅ What is the right way to replace empty construction foam?

When replacing an empty can, make sure that there is no residual pressure left in the can and the gun. It is recommended to put the construction foam gun upright so that the last remaining construction foam flows out of the foam gun below.

The empty can then be unscrewed from the construction foam gun. Keep the can upright so that the foam residue does not get back into the adapter.

Before unscrewing the can, you must pull the lever again and completely spray the remaining foam from the construction foam gun. You can then unscrew the no-pressure fitting from the adapter and connect a new one.

Max Welder

Max Welder

Hi! I'm Max Welder ( I always wanted to work with my own hands, repair something, do things. Now I combine my knowledge with computers and my own knowledge in the field of mechanics in order to understand which tools I like the most. I hope to convey some knowledge and experience.

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