Best Spray Foam Insulation Kit

If you have any gaps or cracks in your home, it is important to get them filled in quickly. Doing so will help increase energy efficiency and lower your utility bills. You will first need to find the best spray foam insulation kit for the job.

Our top choice is the GREAT STUFF Fireblock Insulation Sealant, which features 12 cans of closed-cell polyurethane sealant. You will also receive an applicator gun to make this whole process smooth and easy. You can fill in gaps up to three inches deep. This will help put a stop to air leaks for years to come.

Before you decide on a certain spray foam insulation kit, we encourage you to learn about the following products.

How We Picked The Best Spray Foam Insulation Kit

As we put together our best spray foam insulation kit list, there were a few key factors we focused on. The first thing that we looked for was high quality sealant that adheres to lots of different materials. We also checked to make certain that it has a high R-value and thermal insulation value.

You’ll find that each of the kits below is very easy to use as well. This will minimize any frustration or difficulty that you might encounter with other kits on the market. These kits will also provide you with plenty of coverage. You should be able to use any of them to fill in all of the gaps and cracks in your home.

A Spotlight On Some of The Best Spray Foam Insulation Kit 2023:

Vega Bond Purple Coat Insulation Spray Foam Kit

Akfix Thermcoat Spray Foam Insulation Kit

GREAT STUFF PRO Gaps and Cracks Fireblock Insulation Sealant

Froth-Pak 650 Spray Foam Insulation Kit

Kraken Bond Fastcoat Spray Foam Insulation Kit


Vega Bond Purple Coat Insulation Spray Foam Kit

The Vega Bond Spray Foam Insulation Kit features a new and improved formula that offers a great alternative to fiberglass. The Purple Coat foam insulation can cover up to 240 board feet.

With an R-value of 5.66 per inch, this insulation is incredibly effective at keeping heat from escaping. It also has a thermal value of 0.025 W. You can use it with a variety of materials, including concrete, granite, glass, carbon fiber, and brick.

One of the reasons that we chose this product for our best spray foam insulation kit list is the airtight seal it offers. It is specifically made to prevent heat bypass by covering up studs in the walls. This ultimately provides you with reliable performance that you can count on for years to come.

This spray foam solution adheres extremely well to a vast majority of common building materials. You can use it residential and commercial structures. It is even easy to apply to uneven surfaces, which is a huge plus.

We also really like that this spray foam kit is so easy to use. It comes with simple directions that anyone can follow without any difficulty whatsoever. All you have to do is just apply the foam vertically or horizontally from a distance of 6 to 12 inches.

There’s no question that this kit has a lot to offer when it comes to keeping your home properly insulated all year long. It comes with a 12 cans of foam, an applicator gun, goggles, gloves, a cleaner, and a trash bag. You will have everything needed to get started right away.


  • Applicator is very easy to use even with no prior experience
  • Spray foam solution is compatible with a variety of building materials
  • Insulation has ideal R-value and thermal value for optimal heat retention
  • Can be applied to uneven surfaces without any difficulty
  • Great for basements, crawl spaces, walls, attics, and other areas
  • Kit comes with everything you will need to get started


  • Some customers say that foam cans are good for only 16 board feet each
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    Akfix Thermcoat Spray Foam Insulation Kit

    The Akfix Thermocoat Spray Foam Insulation Kit offers an incredibly reliable way to insulate your home. This spray foam offers superb bonding and adhesion to most materials. It has an impressive R-value of 5.76, which means effective insulation to keep you comfortable in your home year round.

    You can use this spray foam insulation to fill gaps in walls all throughout your house with ease. The foam solution that is included in this kit boasts a unique polyurethane-based formula. It is specifically designed to resist bending when using on door and window frames.

    We found that this kit offers truly versatile applications with drywall, concrete, plaster, wood, stucco, stone, metal, glass, sheetrock, and much more. It is great for crawl spaces, attics, balconies, doors, windows, and other places.

    This kit comes with a can of expanding foam, a cleaner, dispensing gun, eye protection, and gloves. You will receive enough foam to cover up to 240 board feet.

    If you want to improve your home’s insulation with no gaps or other issues, this product has a lot to offer. It is easily among the best spray foam insulation kit options available today. This spray foam insulation cures quickly and lasts for decades. You can therefore count on it to meet all of your needs.


    • Works well in many different areas from attics to cellars
    • Cures quickly and offers reliable long term performance
    • Kit is very easy to use compared to many others on the market
    • High R-value ensures effective insulation for any area of your home
    • Can be used on a variety of materials from drywall to sheetrock
    • Doesn’t bend at all when used on door or window frames


    • A few customers say it is a bit messy


    GREAT STUFF PRO Gaps and Cracks Fireblock Insulation Sealant

    The GREAT STUFF Fireblock Insulation Sealant is impressively effective at filling in gaps and cracks. It works well with cavities that go as deep as three inches or 75 millimeters. You can rely on it for airtight sealing, which will result in a significant increase in energy efficiency.

    One of the reasons that we put this kit on our best spray foam insulation kit list is its sheer versatility. The sealant that is included works well with glass, wood, plastics, metal, and masonry.

    You will receive 12 cans of this spray foam sealant, an application gun, and two cans of cleaner. Everything in this kit is easy to use and doesn’t require following complicated instructions. All you have to do is just remove the top from the can and screw it onto the applicator.

    This water-resistant spray foam solution is incredibly durable once it has cured, which takes about 24 hours. You won’t have to worry about any damage or wear over the years.

    The sealant expands to fill in small to large size caps. This drastically decreases energy loss, which in turn will help you save money on utilities each month. It is an excellent investment to consider, especially if you are spending too much on your heating and cooling at home.


    • Quickly expands to fill in gaps up to three inches
    • Helps reduce monthly utility expenses by stopping air leaks
    • Entire kit is very easy to use and comes with simple instructions
    • Spray foam sealant is water resistant and will stand the test of time
    • Works perfectly with metal, plastics, wood, masonry, glass, and more
    • Comes with two cans of cleaner to take care of mess afterwards


    • Does not come with rubber gloves


    Froth-Pak 650 Spray Foam Insulation Kit

    The Froth-Pak 650 Spray Foam Insulation Kit includes an applicator gun with a new and improved nozzle design. It is very easy to use and offers incredibly smooth operation. This will allow you to distribute the foam sealant quickly and without any unnecessary hassle.

    You’ll find that this foam insulation works exceptionally well to fill gaps and cracks. You will receive 650 board feet worth of spray solution. It can be used in many different places throughout your home. Some of the different areas it is perfect for include attic walls, crawl spaces, and even ceilings.

    One of the reasons that we chose the Froth-Pak 650 for our best spray foam insulation kit list is its impressive overall design. You can spray this foam sealant evenly with a nice consistent flow.

    This product offers a perfect solution for improving energy efficiency in your home. You will no longer have to deal with air leaks, which can cost you a good amount with your utility bills. This results in major savings on a monthly basis, which is always a good thing.

    When you purchase this kit you will receive one tank of isocyanate, a tank of polyol, 15 feet worth of hose, and an applicator gun. It also comes with special nozzles that are designed to prevent crossover. This helps keep everything nice and tidy during the application process.


    • Comes with innovative applicator nozzles that eliminate crossover
    • You’ll have enough spray foam for 600+ board feet of coverage
    • Sealant does a great job of expanding to fill in small to large size gaps
    • Takes care of air leaks to make your home more energy efficient overall
    • Does not emit any HFCs (eco-friendly formula)


    • Applicator gun can be a bit tricky to use at first


    Kraken Bond Fastcoat Spray Foam Insulation Kit

    The Kraken Bond Fastcoat Spray Foam Insulation Kit comes with two nozzles for versatile performance. One nozzle can be used for vertical application, while the other is designed for horizontal sprays. This allows you to apply the sealant to walls, ceilings, and just about any area of your home with cracks or gaps.

    We were really impressed with how easy this kit is to use as a whole. The applicator device doesn’t take much getting used to. The actual foam sealant expands rapidly and is capable of filling in good size cavities.

    The insulation’s 5.66 R-value is just one reason that we chose this product for our best spray foam insulation kit list. It also has an insulation value of 0.025. This means that you can depend on it to work incredibly well over a long period.

    All you have to do is just shake the can thoroughly and spray the foam from the appropriate distance. It should be sprayed 12 to 18 inches vertically, or 6 to 8 inches away horizontally.

    Another reason that we picked this kit for our list is its amazing versatility. It can adhere unbelievably well to concrete, plaster, stucco, drywall, glass, stone, and so much more. You can use it in your home, camper, automobile, or even a boat.


    • High quality foam sealant adheres well to almost any building material
    • Comes with two different nozzles for vertical or horizontal application
    • Great for houses, cars, campers, RVs, and even boats
    • Excellent R-value and thermal insulation value ensures great performance
    • Impressively easy to use with no overly complicated instructions
    • Available in a variety of sizes to meet all of your needs


    • Applicator gun’s spray pattern could be a bit more efficient


    Best Spray Foam Insulation Kit Buying Guide

    Best Spray Foam Insulation Kit

    When you are looking for the best spray foam insulation kit, there are a few key factors to look at. The list below will help you decide on the right one so you’ll get your full money’s worth.

    Open-Cell vs. Closed-Cell

    It is crucial that you weigh the pros and cons of open-cell vs. closed-cell spray foam when looking at your options. Each type of insulation has a lot to offer, so it is definitely worth doing your research.

    The fact is that closed-cell foam offers a higher overall R-value. This ultimately means more effective insulation for your home. Open-cell foam expands quite a bit more, which makes it perfect for awkward or hard to reach spaces. If overall effectiveness is your top priority, we recommend a kit that comes with closed-cell foam.


    As you search for the best spray foam insulation kit, you’ll need to take a close look at the sealant itself. It should have an R-value of at least 5.66. This will ensure that air won’t be able to escape or enter any area it is applied to.

    A thermal insulation value of about 0.025 W is considered ideal. These ratings will ultimately determine how effective the spray foam is when it comes to insulating your home.


    There’s no question that the best spray foam insulation kit will come with sealant that is truly versatile. Make sure that it can be used with a wide range of building materials. Some of these materials include concrete, drywall, stucco, glass, wood, and brick. You’ll need to consider which materials you’ll need to use it on before making a final decision.

    Most of these kits can be used with crawl spaces, attics, and other areas within your home. They are also useful for filling air leaks in cars, campers, RVs, and even boats. A versatile spray foam insulation kit will ensure that you get your money’s worth.

    Ease of Use

    The very best spray foam insulation kit will be very easy to use overall. You should receive clear and detailed instructions with it. This will go a long way towards saving you a lot of time and aggravation.

    Many of these kits will only require you to screw a can onto an applicator and begin spraying. While it can take a little bit to get the hang of this, it is a relatively simple process as a whole.

    Applicator Device

    The applicator device that your kit comes with should be designed for smooth and even distribution. Some of the best spray foam insulation kit products include special nozzles that reduce mess. These devices typically have a trigger that emits the spray foam solution while pressed.


    Take the time to find out how much total coverage each kit offers so you can get your needs met. This is essentially maximum area that you can fill in before having to purchase more.

    We recommend that you take the time to figure out how many gaps or cracks you need to fill in before buying anything. You’ll find that some of these kits come with enough sealant for 600+ board feet of coverage. Many of them are available in different sizes, so you’ll want to carefully look at all of your options.

    Other Items

    The spray foam insulation kit that you buy should come with gloves and goggles. These items are absolute necessities when it comes to staying safe and clean while you apply the sealant. You should also receive an applicator gun and at least 15 feet of hose. This will ensure that you have everything that is needed to get started.


    In order to choose the very best spray foam insulation kit, you’ll need to look for one that comes with a well-designed applicator. You should be able to distribute the foam sealant evenly and smoothly. The spray foam itself should adhere extremely well to a variety of materials. Feel free to comment below so we know what you think about our list.

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