InTech Equipment & Supply

Check out the top-selling Graco equipment offered by Intech Equipment & Supply, and learn about the types of spray foam equipment available.

Learn More

InTech Equipment & Supply

Check out the top-selling PMC equipment offered by Intech Equipment & Supply, and learn about the types of spray foam equipment available.

Learn More

Spray Foam Guns

Spray foam guns are valuable tools for Spray Polyurethane Foam (SPF) insulation contractors and application professionals. They are essential to the process of applying sprayed materials.

The spray foam gun dispenses and applies the mixed materials from the proportioning machine. The spray foam gun mixes the materials during the spraying process. This process must happen quickly, or the combined materials will immediately start to harden. For this reason, it is important that no materials be allowed to remain in the spray foam gun for any lengthy period. Excess material can be removed from a spray foam gun through a process called “purging.” Spray foam guns are categorized by their specific purging process.

For those contractors new to the SPF business, here are three of the most common types of spray foam guns:

Mechanical purge spray foam guns

A mechanical purge spray gun has a valving rod within the mixing chamber. This rod keeps each chemical area separate before use. Pressing the trigger pulls back the rod from the chemical areas in the chamber, and they are released and mixed. Releasing the trigger lets the valving rod return to its original position. This action purges any remaining material from the chamber of the spray foam gun.

Air purge spray foam guns

With an air purge spray foam gun, pressing the trigger moves the mixing chamber allowing the chemicals to be combined. Releasing the trigger results in a blast of air which discharges any remaining materials from the mixing chamber.

Solvent purge spray foam guns

A solvent purge spray foam gun requires SPF contractors to use a solvent chemical to prevent any chemical reaction. The solvent also flushes out any materials remaining in the spray foam gun. Spray foam contractors commonly use this type of spray foam gun for polyurea and two-part urethane coating applications.

Featured Spray Foam Guns


Graco Fusion AP Gun

With long-life mix chamber and durable side seals, Fusion guns are designed to reduce maintenance and downtime, and provide a better mix.

AP-2 Spray Guns

AP-2 Spray Guns

The PMC AP-2 spray gun is lightweight, and comes with a coating on the outside to make cleaning the gun as easy of a process as possible. The AP-2 is one of the lightest and lowest priced air purge spray guns on the market.


Graco Fusion CS

ClearShot Technology sets the Fusion CS gun apart from every other applicator. With its revolutionary technology, the Fusion CS is poised to virtually eliminate drilling of the mix chamber – increasing your spraying uptime and reducing downtime spent on maintenance. Flexible for polyurea and foam applications, this gun provides you with versatile advantages.

Shop for spray guns

Visit our online store to see the wide variety of spray foam guns we offer at Intech Equipment & Supply.


Your Guide to Professional Spray Foam Guns

At Intech Equipment & Supply, we understand that you live and breathe excellence as a professional contractor. You're an expert in your field and know that the right equipment makes all the difference in delivering outstanding results. Delivering professional results that delight your clients is key to ensuring you’re able to prosper from the projected growth in the spray foam industry, which is why we’re committed to providing the industry’s best spray foam guns and spray foam gun equipment to help you take on any project. This comprehensive spray foam gun guide helps professionals make informed decisions when investing in business equipment crucial for keeping operations on time and up to standards.

Selecting a Foam Spray Gun

Selecting the spray foam gun that can handle your jobs is crucial for achieving optimal results and delivering customer satisfaction when it comes to spray foam insulation. It needs to provide precise and controlled applications and stay operational through larger jobs. Keep reading to learn more about the different types of spray foam guns available, how to select the right one for your specific needs, and share maintenance tips to keep your spray foam gun in top shape.

What are the different types of spray foam guns?

There are several types of foam spray guns available for various insulation applications. The three main types are air purge guns, mechanical purge guns, and variable ratio guns. Understanding the difference between the types of spray foam guns is crucial when selecting a spray foam gun for sale.

Air Purge Guns

Air purge guns are commonly used in residential insulation projects and are likely unable to meet the more robust needs of professional contractors. They use compressed air to mix and atomize the spray foam chemicals instantly. These guns are known for their efficiency and ease of use but are not recommended for large jobs.

Mechanical Purge Guns

Mechanical purge guns are often used in commercial and industrial insulation projects. These guns feature mechanical components that accurately mix the spray foam chemicals and provide better control over spraying.

Variable Ratio Guns

Variable ratio guns are versatile and can adjust the mixing ratio of the spray foam chemicals on the go. They are used in various insulation projects where different foam densities or ratios are required.

Factors to Consider When Choosing a Spray Foam Insulation Gun

The type of spray foam gun isn’t the only consideration during your selection process. You should also consider the following factors.

  1. Specific insulation needs: The job requirements, including the type and size of the area to be insulated and the desired foam density, play a significant role in selecting a spray foam gun.
  2. Durability and performance: Look for guns made from high-quality materials that can withstand the demands of your insulation projects, such as a Graco or PMC spray foam gun. Consider the reputation and track record of the manufacturer to ensure consistent performance.
  3. Ease of use and maintenance: Choose a spray foam gun that is user-friendly and easy to maintain. Look for features such as ergonomic design, easy cleaning mechanisms, and availability of spare parts.
  4. Compatibility with other equipment: Ensure that your chosen spray foam gun is compatible with other equipment you plan to use, such as spray foam systems, nozzles, and hoses. This will ensure seamless integration and optimal performance.

What is the Best Expanding Foam Gun Nozzle Set?

 Foam gun nozzle sets, also known as mix chambers, play a crucial role in spray foam insulation guns. These components are essential for creating the proper mix ratio of the two-part foam components, ensuring optimal performance and quality of the insulation material. Brands like Graco and PMC offer high-quality expanding foam gun nozzle sets and your Intech Equipment & Supply representative can walk you through the features and benefits of each model.

Additional Spray Foam Insulation Gun Considerations

While the foam spray gun itself is crucial in your selection process, handling and storage factors should also be considered.


Working with spray foam insulation requires safety precautions to protect you and others. Follow these important safety guidelines:

  1. Personal Protective Equipment (PPE): Wear appropriate PPE, including safety goggles, gloves, coveralls, and respiratory protection, to minimize exposure to spray foam chemicals and ensure your safety.
  2. Ventilation: Provide adequate ventilation in the area where spray foam insulation is being applied to prevent the accumulation of fumes and maintain a safe working environment.
  3. Training: While you might be an expert spray foam gun handler, it’s crucial to get training on any new equipment you purchase and ensure your team is properly trained as well.

Proper Handling and Storage of Spray Foam Guns

Proper handling and storage of spray foam guns are essential for their longevity and safe operation. Speak with your supplier about the manufacturer’s handling and storage guidelines. Following the manufacturer’s guidelines ensures you receive the best possible return on your investment now and into the future.

Do You Have to Clean a Foam Gun After Every Use?

Yes, cleaning your spray foam gun after each use is essential for maintaining its performance and preventing clogs or blockages. Failure to clean the gun thoroughly can lead to the buildup of dry foam, which can affect the gun's spraying ability. Proper care is as essential as recommended handling and storage for ensuring your spray foam gun delivers seamlessly on the job.

Cleaning and Maintenance Tips for Prolonging the Lifespan of Spray Foam Guns

To prolong the lifespan of your spray foam gun and ensure its optimal performance, follow these cleaning and maintenance tips:

  1. Immediate cleaning: After each use, flush the gun with a suitable solvent or cleaner recommended by the manufacturer. This will remove any residual foam and prevent it from hardening.
  2. Regular inspections: Inspect the gun regularly for any signs of wear, damage, or clogs. Replace any worn-out or damaged components promptly. When you purchase your equipment from Intech Equipment & Supply, you can contact your representative for support with new parts, often with overnight delivery available.
  3. Lubrication: Apply lubricant to the moving parts of the gun as recommended by the manufacturer. This will help maintain smooth operation.
  4. Proper storage: When not in use, store the spray foam gun in a clean and dry location, protected from dust and moisture.

Insulation Spray Foam Equipment

In addition to a foam spray gun, other essential equipment is needed for successful spray foam insulation application. This includes:

  1. Spray foam systems: These systems consist of a proportioner and heating elements to mix and heat the spray foam chemicals for application.
  2. Hoses and fittings: Hoses and fittings connect the spray foam gun to the proportioner and allow for the transfer of the foam chemicals.
  3. Nozzles and tips: Nozzles and tips govern the spray pattern and control the flow of the foam chemicals during application.

The Importance of Choosing Compatible Equipment for Your Spray Foam Gun

Choosing compatible equipment is crucial to ensure seamless integration and optimal performance. Incompatible equipment can lead to issues such as poor mixing, inconsistent spray patterns, and reduced efficiency, all potentially compromising your professional integrity. Always consult the manufacturer's recommendations and specifications when selecting equipment for your spray foam insulation projects. Top-notch manufacturers like Graco offer a wealth of websites. Additionally, quality suppliers such as Intech have knowledgeable representatives recognized as experts on leading spray foam gun manufacturers, so you’ll have expert guidance in selecting the right spray foam equipment for you.

Recommended Spray Foam Equipment Manufacturers

When it comes to spray foam insulation equipment, trusted brands like Graco and PMC are known for their quality and reliability:

  1. Graco Spray Foam Equipment:  Renowned for its exceptional quality and innovation, Graco delivers spray foam equipment that exceeds industry standards and empowers professional contractors to achieve outstanding results. With its cutting-edge technology and robust construction, Graco equipment ensures optimal performance, efficiency, and durability.
  2. PMC Spray Foam Equipment: PMC spray foam equipment exemplifies excellence in the industry, setting the bar high for performance and reliability. With an unwavering commitment to innovation, PMC consistently delivers state-of-the-art machinery that caters to the specific needs of professional contractors. The advanced technology and precision engineering behind PMC equipment ensure consistent and accurate application of spray foam materials, resulting in superior insulation properties and energy efficiency.

Are All Spray Foam Guns the Same?

From the different types of spray foam guns to various manufacturer best practices, to ranges in capabilities and quality, the answer is “no, not all spray foam guns are the same.”

Are Spray Foam Guns Reusable?

Yes, spray foam guns are reusable, which offers two distinct benefits:

  1. Cost savings: Reusable spray foam guns eliminate the need for frequent replacement, resulting in long-term cost savings.
  2. Reduced waste: Rather than disposing of a foam gun after each use, reusable guns help reduce waste and contribute to a more sustainable insulation process.

Choosing the Best Spray Foam Gun

When selecting the optimal spray foam gun for your insulation needs, several crucial factors come into play. Start by evaluating the specific requirements of your insulation project, considering factors such as the area size, foam density, and any unique project-specific requirements. Next, prioritize durability and performance by opting for spray foam guns constructed from high-quality materials that can withstand the rigorous demands of insulation projects.

Thoroughly researching manufacturers' reputations and track records is essential to ensuring reliability. Ease of use and maintenance are also vital considerations when choosing a spray foam gun. Look for user-friendly designs that are simple to clean and maintain and prioritize features like ergonomic design and accessibility of spare parts. Furthermore, it is crucial to ensure that your chosen spray foam gun is fully compatible with other spray foam equipment you intend to use, such as spray foam systems, nozzles, and hoses. By carefully considering these factors, you can make an informed decision and select the foam spray gun that aligns perfectly with your insulation needs.

Shopping for Spray Foam Insulation Guns for Sale

When shopping for new or used spray foam guns for sale, it’s crucial to work with a supplier that has a reputation for trustworthiness and support, even after the sale is over. Look for specialized insulation equipment suppliers, local hardware stores, or online retailers that carry trusted brands.

Consider the following factors when purchasing a spray foam insulation gun:

  1. National footprint/Accessibility: Working with a provider that has a nationwide presence offers the advantage of quick and efficient delivery of parts to any location in the country. Look for a supplier with multiple locations across the nation who can deliver parts promptly, ensuring minimal downtime. Responsive customer service and the ability to ship parts for next-day delivery, even after regular business hours, is crucial in maintaining productivity on the job site.
  2. Customer service: A reliable supplier should offer exceptional customer service to support contractors throughout their projects. Look for a provider who can offer same-day or next-day service and troubleshooting across different time zones. The provider should be committed to ensuring accurate part shipments and providing guidance during installation or replacement processes. A customer-centric approach that focuses on problem-solving and accommodating contractors' needs is essential.
  3. Total cost of ownership: While upfront prices may vary among suppliers, considering the total cost of ownership is vital. It is crucial to evaluate the supplier's ability to provide timely repairs and support when equipment malfunctions. Look for a provider that offers prompt and effective resolutions, minimizing project delays and associated costs. Prioritizing long-term value and support can help avoid potential disruptions and ensure project efficiency in the long run.
  4. Warranty: Warranty coverage is an important aspect when choosing a spray foam insulation gun provider. Evaluate the warranty terms and conditions offered by different suppliers. Look for a provider with a comprehensive warranty policy that allows direct resolution of any warranty issues. Make sure the warranty applies regardless of the contractor's location, as limitations may result in unexpected expenses if a project is located out of state.
  5. Insurance coverage/Protection: Consider the level of insurance coverage and the stability of the supplier. It is important to choose a provider that stands behind its products and is financially stable. This ensures that in the event of any unforeseen circumstances, such as the supplier going out of business or becoming unresponsive, contractors are protected and can receive necessary repairs or replacements. Confirming the supplier's solid reputation and longevity in the industry can provide peace of mind.

In conclusion, selecting the right spray foam gun is crucial for achieving superior insulation results. By understanding the different types of spray foam guns available, considering important factors like specific insulation needs and compatibility, and following proper maintenance and safety protocols, you’re well on your way to purchasing the right spray foam gun rig for your business. Trusted brands like Graco and PMC offer top-quality options to meet your needs, and suppliers like Intech Equipment & Supply can answer your questions while guiding you to the decision uniquely appropriate for your needs.

Shop Intech’s inventory of spray foam guns here.



Intech Equipment & Supply was founded in 1995, and has since grown to become the leader in spray foam equipment, mobile spray foam rigs, and parts supplier. With locations all across North America we are available when you need us most.