Best Spray Foam Insulation Kits in 2021

Disclosure: PickHVAC is reader-supported. When you buy through links on our site. We may receive commissions at no additional costs to you.

Best Spray Foam Insulation Kits

You have heard of foam insulation boards and sprayed in foam insulation, but what is a spray foam insulation kit? Well, it’s a product for the DIY person that you can purchase to insulate areas that are generally smaller than a typical insulating job. 

In this article you will find an Overview of various spray foam kits that will highlight the best features of each. These overviews will help you to determine at a glance, which kit or kits might  best meet your needs. Following that, an in-depth Review will give you more specifics about each product. The Buying Guide will help walk you through the process of selecting the right type and size kit you need for your project. A few FAQs relating to spray foam kits will appear at the end. 

Overviews – Best Spray Foam Insulation Kits

One of the important features of these kits is their type of foam. Open-celled and close-celled foams are different in terms of their cost and insulation value. You’ll pay more for closed-celled foam kits, but they do have their advantages. Let’s dig into this interesting stuff. 

Closed Cell Spray Foam Kits 

We begin with kits that contain two chemicals which produce closed cell insulating foam when mixed together. This may be of either, “medium” or “high” density foam. A full explanation of the difference between open and closed cell foam will be found below in the Buying Guide. 

Medium Density Kits 

Medium density spray foam is the most common type of closed cell spray foam. It is typically used in a wide variety of insulating jobs including walls, floors, crawl spaces and rim joists. 

      Image                              Product

Two-Component Polyurethane Foam Kit

1. Touch 'N Seal Two-Component Polyurethane Foam Kit 600

  • Expands to fill smallest to largest gaps, cracks and holes, reducing air leakage.
  • Kit covers up to 600 board feet of foam (One board foot = 1 ft. square at 1 inch thick).
  • Portable, disposable and self-contained with color-coded, pre-connected hoses.
  • High R-value insulation and reduces sound transmission.
  • Compatible with all fiber insulation systems including cellulose, fiberglass and rockwool.

2. Dow FROTH-PAK 210 Fire Rated Insulation Class A

  • Yields approximately 210 board feet of foam (17.5 cubic ft).
  • Blocks air and vapor infiltration.
  • Tack free in 30 to 40 seconds.
  • Class-A fire rating (flame spread of 25 or less).
  • Can be used in a wide range of industrial, commercial, institutional and residential applications in the United States. 

3. Dow FROTH-PAK 620 Sealant - 2 Component Foam Insulation Kit

  • Designed to fill gaps and penetrations greater than 2 in. quickly and affordably, helping eliminate unwanted airflow throughout the home.
  • Yields up to 620 board feet of foam (51.7 cubic ft).
  • Great for roof and wall junctions, walls and attics, electrical boxes, mechanical and plumbing penetrations in the building envelope.
  • Bonds to wood, rigid foam, masonry, metal, drywall and more.
  • Will expand and become tack free in 30-40 seconds and be completely cured in under 1 minute.
Seal Spray Foam High Performance

4. Seal Spray Foam High Performance Closed Cell Insulating Foam Can Kit

  • Two component foam performance in a single, easy-to-use 24 oz. can.
  • Applies directly by attaching the included spray nozzles to the can.
  • Less expensive than the large two-component kits.
  • Wastes less material on smaller projects with no large tank disposal.
  • Multiple users can spray at the same time. 
Handi-Foam Spray Foam Kit

5. Handi-Foam Spray Foam Kit II-205 Class 1, 41 lb.

  • Multipurpose, 2 component insulating spray foam sealant.
  • Covers approx. 205 board feet (17 cu. ft.).
  • Insulation value R-6 to 7.2.
  • Application temperature range: 40 to 100 degrees F.
  • Performance temperature range -200 to +200 degrees F.  

High Density Kits 

High density spray foam is normally used on roofs to seal and insulate the outer roof surface. Because roof jobs typically involve large square footage, high density kits are often used for smaller DIY projects. Availability is sometimes limited. 

      Image                              Product

High Density Spray Foam

1. Touch 'N Seal High Density Spray Foam Roof Insulation Kit

  • Kit is a portable, self-contained dispensing system designed for use in repairing spray foam roofs, appliance and cold storage applications.
  • Useful to repair foam blisters in spray foam roofs, fill pitch pockets, create and fill parapet corners and to fill around protrusions such as ventilation stacks and piping.
  • Permanent, dries within minutes and becomes durable insulation that resists hail damage.
  • Open Cell Spray Foam Kits 

    Open cell spray foam is also known as “low density” foam. Kits of this type are difficult to find at times. See the complete description of open cell foam in the Buying Guide below. 

          Image                              Product

    Low Density Insulating Foam Kit

    1. Touch 'N Seal Home Sealing Low Density Insulating Foam Kit 300

    • Open-cell, non-structural air sealing and insulating foam.
    • Kit yields up to 300 board feet of Class 1 fire-retardant foam.
    • Increases R-value and reduces sound and energy loss.
    • Dries in one minute.
    Open Cell Spray Foam Insulation

    2. Touch 'N Seal 1000 Kit Open Cell Spray Foam Insulation

    • Yields approx. 1000 square feet 1” thick for large insulating projects.
    • Blocks heat gain in the summer and heat loss in the winter.
    • Lower energy bills during the hottest and coldest times of the year - up to 20%.

    Crack and Gap Filling Kits 

    Though not designed to spray foam on flat surfaces, this type of kit is often used in conjunction with other insulation practices and materials. They can provide a valuable means of sealing a building and preventing drafts that might otherwise not be addressed. 

          Image                              Product

    Fomo Products Handi-Foam Spray Foam Insulation

    1. Fomo Products Handi-Foam Spray Foam Insulation - 16 lb. Kit

    • Polyurethane moisture cured sealant designed to completely fill and seal small gaps, cracks, and voids up to about 3 inches.
    • Excellent adhesion and expansion characteristics ensuring a complete and permanent air tight seal.
    • Spray foam tank insulation is dispensed through a hose and wand for control and ease of use.
    • Assists in preventing air infiltration and helps to reduce heating and cooling costs.
    • Helps to prevent moisture infiltration that happens through air leakage.
    No-Warp Window and Door Insulating Spray Sealant Kit

    2. Touch 'N Seal No-Warp Window and Door Insulating Spray Sealant Kit

    • For filling cracks and gaps with ¼” expanding bead; great for sealing windows and doors.
    • Each 20 oz. can yields approx. 2,096 linear feet.
    • R Value - 4.5 per inch of thickness.
    • Class A fire resistance.

    Spray Foam Insulation Kit Reviews

    Here are the full spray foam insulation reviews from the pros at PickHVAC.  

    Closed Cell – Medium Density 

    1. Touch 'N Seal Two-Component Polyurethane Foam Kit 600

    Two-Component Polyurethane Foam Kit

    Features of This Product:

    This is a closed cell spray foam insulation that provides both thermal insulating and sound-reducing properties.

    It has a Class A fire retardancy.

    It is suitable for use in commercial, residential, transportation and many other applications.

    Kit includes A & B cylinders, applicator gun with 15 ft hoses, extra spray nozzles, assembly wrench, latex gloves, lubricant and instructions.

    Also available in 110 and 200 board ft sizes.


    • Easy to use.
    • Forgiving in terms of time between squeezing the trigger (e.g. when moving the ladder to a new location )
    • Great coverage.
    • Better dollar value than a competitor’s brand. 


    • Difficult to get a good mix ratio when spraying overhead.
    • Overspray will get on anything not masked.

    Bottom Line:

    The Touch ‘n Seal Two-Component Polyurethane Foam Kit 600 has gained many top reviews from satisfied customers. This kit is the larger of 3 sizes and has been used successfully for insulating small to medium sized projects.

    2. Dow FROTH-PAK 210 Fire Rated Insulation Class A

    Dow FROTH-PAK 210

    Features of This Product:

    Froth Pak Insulation (Red Stripe Box) is intended to cover a wider area than Froth Pak Sealant.

    A two-component, quick-cure polyurethane foam that fills cavities, cracks and expansion joints for insulation and air sealing.

    Kit contains 2 chemical cylinders, dispensing spray gun, 10 spray nozzles and a 9 foot hose and gun assembly.

    Can be left exposed in non-fire-resistant-rated roof/wall junctures per the National Fire Protection Association testing.

    Also available in 12 board ft. size as well as 650 board foot size in 1, 2, and 4 packs.  


    • Closed cell foam provides excellent insulation and vapor resistance.
    • After aging (180 days @ 75°F) has an R-Value of 12.2 when sprayed 2” thick.
    • Great for repairs, small remodeling projects and new installation of small projects such as a bathroom with one or two outside walls, etc. 


    • Some DIYers report some difficulty acquiring the amount of coverage listed on product packaging.

    Bottom Line:

    The Dow Froth Pak Fire Rated Insulation Spray Foam Kit is a product that can be used to insulate difficult, hard-to-reach spaces. Be sure to follow all instructions closely as spray foams are highly sensitive to temperature.

    3. Dow FROTH-PAK 620 Sealant - 2 Component Foam Insulation Kit

    Dow FROTH-PAK 620

    Features of This Product:

    Froth Pak Sealant (Green Stripe Box) uses closed cell foam to block openings, seams and passages where air and moisture can leak through your floors, walls and building structure.

    Intended to be applied in a manner similar to caulk and foam sealants by covering all the seams where joists, sill plates and subflooring meet; a method known as “Picture Framing”.

    Kit contains 2 chemical cylinders, a dispensing spray gun and 15 ft. hose assembly, and 12 spray nozzles.

    Also available in 12 and 200 board ft sizes. 


    • More expensive than regular fiberglass insulation but more effective.
    • Works great for insulating attic ductwork.
    • More than enough nozzles provided with the kit. 


    • Product will stick to everything! Cover everything not intended to be insulated and wear a protective suit.

    Bottom Line:

    The Dow FROTH-PAK 620 Sealant Spray Foam Insulation Kit, though advertised as being for “picture-framing”, has been successfully used by many DIYers for wider coverage of stud spaces, rim joists, etc. The 15’ hose assembly is a real plus.

    4. Seal Spray Foam High Performance Closed Cell Insulating Foam Can Kit

    Seal Spray Foam High Performance

    Features of This Product:

    Seal Spray Foam is applied directly by simply attaching a spray nozzle to the 24 oz. can.

    Much more portable than large, 2 cylinder spray foam kits.

    Superior adhesion to many surfaces.

    Applies with ease on walls, ceilings and roofs.

    Easy to use in tight places and fast skin over time.

    Thermal and sound insulation with superior R value.  


    • Great alternative to bulky container kits.
    • No hoses to drag around or get tangled.
    • Able to easily customize purchase size to job size with more or less cans. 


    • Does not always spray evenly at lower temperatures.

    Bottom Line:

    Whether you have a small job or a large one, you can easily insulate cracks and joints, as well as flat surfaces with this product. The ease of application makes it a great choice for a wide variety of  insulation projects requiring closed cell foam. 

    5. Handi-Foam Spray Foam Kit II-205 Class 1

    Handi-Foam Spray Foam Kit

    Features of This Product:

    Kit includes 2 cylinders, contractor-grade professional dispensing gun, Color Wise® temperature warning nozzles (3 Fan, 5 Cone) and 9½ ft. hose assembly.

    Color: Cream.

    High R-value (6 to 7.2).

    Expansion Ratio 4:1.  


    • Can be used both indoors and outdoors.
    • Helps to resist moisture, block air leaks, and insulate spaces to prevent heat loss.
    • Patented Color Wise® nozzles warn if temperatures are too low for proper performance of foam. 


    • Availability may be limited at this time.

    Bottom Line:

    The size of this kit makes it ideal for insulating rim joists, crawl spaces and other areas where a high R-value is desired. With two successive 1” coats, the insulating properties exceed that of 4” fiberglass batts.

    Closed Cell – High Density

    1. Touch 'N Seal High Density Spray Foam Roof Insulation Kit

    High Density Spray Foam

    Features of This Product:

    3.0 lb. high compressive strength foam.

    Kit includes 2 cylinders (A&B), pre-connected chemical hoses, Anti-Crossover gun and nozzles.

    Covers approx. 120 square feet 1” thick.

    Color: Beige

    Application temperature range: 60 to 100 degrees F.

    Performance temperature range: -200 to +240 degrees F. 


    • High density material adds strength to roofing as it insulates and seals.
    • Worked great to repair approx. 2 inch deep removed foam roof material after installing new skylights.
    • Less expensive than hiring professional roofers to seal our roof problems. 


    • Could not locate any negative comments on this product. 

    Bottom Line:

    The Touch ‘n Seal brand has a very good reputation and high customer satisfaction. This high density spray foam kit is one of the very few that is available for DIY users. It can be used in many applications and will provide strength and high R-value insulation.  

    Open Cell Spray Foam Kits 

    1. Touch 'N Seal Home Sealing Low Density Insulating Foam Kit 300 

    Low Density Insulating Foam Kit

    Features of This Product:

    Kit Includes: 2 foam cylinders, fan and conical spray nozzles, applicator gun, and 15 foot hose.

    Open cell class I fire-retardants for use in commercial and residential insulation projects.

    May be thinly applied in the wall cavity or “picture-framed” around the studs.

    Will eliminate air infiltration offering excellent building envelope insulation. 


    • Clear instructions and various spare nozzles.
    • Foam applies nicely and cures fast.
    • Easy to use. 


    • Kit fell short on coverage.
    • Overspray gets on everything. Mask completely. 

    Bottom Line:

    The Touch ‘n Seal Home Sealing Low Density Insulating Foam Kit 300 is great for small insulating jobs where vapor penetration is not an issue. Typical residential applications include the interior of garage doors, small storage sheds and garages. 

    2. Touch 'N Seal 1000 Kit Open Cell Spray Foam Insulation 

    Open Cell Spray Foam Insulation

    Features of This Product:

    The big brother of the Touch ‘n Seal 300.

    Kit includes a 30 ft. gun hose assembly, 8 cone and 2 fan nozzles.

    Open cell insulation prevents dramatic temperature changes in the home.

    Lower energy bills during the hottest and coldest times of the year. 


    • Everything worked well when instructions followed. Love this product!
    • Works great when operating temperatures are above 70F.
    • The 30 foot hose assembly makes working with this kit much easier than shorter hoses.


    • Didn’t expand as much as expected.
    • Board foot coverage was disappointing.
    • Do overhead areas first to allow for lower pressure in the bottom of the cylinder.

    Bottom Line:

    The large capacity and longer hose assembly included with this kit make it ideal for those larger projects where open cell foam is the best option. 

    Crack and Gap Filling Kits 

    1. Fomo Products Handi-Foam Spray Foam Insulation - 16 lb. Kit

    Fomo Products Handi-Foam Spray Foam Insulation

    Features of This Product:

    Kit Includes a single canister containing 260 oz. (16lb) of foam-producing chemical, 9 ½ foot hose, brass ball valve, and a brass needle nozzle.

    Closed Cell Single Component.

    Yields approx. 36,108 linear feet at ¼ inch bead.

    R-Value: 5 per inch of thickness. 


    • Seals lots of cracks and crevices to keep out drafts, insects and rodents.
    • Worked great for what it was intended. 


    • Messy – wear a hazmat suit!
    • Meant for filling cracks and holes, not spraying walls. 

    Bottom Line:

    The Fomo Products Handi-Foam Spray Foam Insulation - 16 lb. Kit is a great product for sealing and filling all those small spaces where building materials don’t fit tightly. Some DIYers have mistaken it for a full-coverage spray foam kit. Those who read and followed the instructions liked it. 

    2. Touch 'N Seal No-Warp Window and Door Insulating Spray Sealant Kit 

    No-Warp Window and Door Insulating Spray Sealant Kit

    Features of This Product:

    Kit includes: 10 – 20 oz. cans of No-Warp Window and Door Insulating Sealant and 2 – 12 oz. cans of Poly Foam Cleaner.

    Each can yields approx. 2,096 linear feet of ¼” bead.

    Color: Bright white.

    Dries tack-free in 12 minutes; Fully cured in 1 hour. 


    • It exerts up to 95% less bowing pressure than competitive foams that may
    • Shelf life of 18 months.
    • The included Poly-Clean foam cleaner cleans wet foam from tools and applicator. 


    Bottom Line:

    The Touch ‘n Seal No-Warp Window and Door Insulating Spray Sealant Kit is the ideal product for sealing all the small cracks around doors and windows of a new build before other insulation is applied.

    Spray Foam Insulation Kit Buying Guide 

    OK. You have an insulating job to do and you know that you want to use spray foam. Here are some things to know before you make your purchase. 

    Closed Cell and Open Cell Insulation Foam – the Differences 

    Open Cell VS Closed Cell Insulation

    Closed Cell Spray Foam is made when two chemicals that meet in a 1 to 1 ratio through a special dispensing nozzle. Its cells are made up of trapped gasses. Because of this and the density of the cured foam, it not only insulates against thermal air movement, but also provides a barrier against water vapor. 

    Medium Density Closed Cell Foam weighs between 1.75 and 2 lbs. per cubic foot (PCF). It expands approx. 25 times its liquid volume when applied correctly.  Its R-value is normally between 6 and 7. It is more expensive than open cell foam, but stronger, thus adding strength to the structure.   

    It is the foam of choice in cold climates because it eliminates the need for a separate vapor barrier. If greater than a 2” cured depth is desired, it should be sprayed in thinner single passes to prevent excessive heat buildup while curing. 

    High Density Closed Cell Foam weighs approx. 3 lbs. PCF. It is formulated to expand less than medium-density foam when applied, thus making it more dense and heavier. It is also very strong and will add significant strength to the structure to which it is applied. 

    It is often used on flat roofs, completely covering the roof surface. It also works well for insulating large storage tanks. To protect it from UV rays, it is usually covered with a special silicone spray. 

    Open Cell Spray Foam is also made by the blending of two chemicals in a 1 to 1 ratio. Its cells are made up of trapped air. This makes it much lighter than closed cell foam, but it is also much weaker and will allow water and water vapor to pass through it. 

    It only weighs about .5 lbs. per cubic foot (PCF). It expands approx. 120 times its liquid volume and has an R-value of between 3.5 and 3.7. It is soft and spongy, so it doesn’t add strength to the structure, but does a good job insulating and is less expensive than closed cell foam. 

    It is very useful for insulating wherever a vapor barrier is not required. Examples include: in a warm climate (zone 4 and below) where outside temperatures are normally higher than inside; around HVAC in basements and attics, etc. 

    Important Tips for Using Spray Foam Insulation Kits 

    Spray foam insulation professionals have large compressors, mixing regulators and other sophisticated equipment to enable them to apply spray foam in the best manner possible. Using a spray foam kit with just two cylinders and a spray gun presents some challenges to the DIY user, especially if it is the first time he or she has used one. Here are some important tips. 

    1. Read and Follow all instructions carefully. Note this well: Many negative customer reviews of spray foam insulation kits reveal that the user did not follow one or more instructions. 

    2. Three Temperatures are very important to the proper application:

    • Chemical Temperature - between 70-90°F.  80 is better than 70! Hose temperature, too.
    • Spray Surface Temperature – between 60-90°F. 75 is better than 60!
    • Air Temperature – Between 60-90°F. Again, 75 is better than 60! 

    3. Nozzles – Spray foam sets up quickly and will clog the nozzle within 20-30 seconds of stopping. Anytime you stop spraying for more than 30 second, follow the instructions for replacing the nozzle. Plan ahead so you can spray a large area without stopping for more than a few seconds between sprays. 

    4. Trigger Control – Most spray dispenser guns have triggers that are not simply “on” or “off”. Don’t feel that you have to “mash” the trigger to get a good, even spray. When you begin, try pressing the trigger half way, then a little more or a little less to see what produces the best spray from your kit. 

    5. Protective Personal Equipment (PPE) – Always wear a quality respirator that protects from harmful gasses, not just a dust mask. Wear full body coverage, goggles and Nitrile gloves. Full protective suits are available online or at your local big box store. 

    6. Climate – In cold U.S. climates (zones 1 through 7), 2” of closed cell foam on walls is best.  Apply this in two thinner passes to prevent heat buildup. A great hybrid application is to use 2” of closed cell foam on the inner surface of walls with fiberglass batt (“Flash & Batt”) or open cell foam to fill the wall cavities. 

    In warmer U.S. climates (zones 8 through 11) fill the wall cavities with open cell spray foam. A vapor barrier on the inside may be applied, but is not normally necessary in warm climates. 

    Spray Foam Insulation Kit FAQs 

    Q: How long can I keep a spray foam insulation kit?

    A: Most cylinders have a shelf life of approx. 18 months. However, once they are opened and partially used, they should be either used up or disposed of within 30 days. 

    Q: Once I purchase a spray foam kit, can I get the tanks refilled to save money?

    A: No. Once completely emptied, the tanks should be disposed of as normal industrial waste. It is recommended that they be taken to a sanitary landfill. 

    Q: Are the cylinders in spray foam kits under high pressure?

    A: No. Spray foam kits are low-pressure systems with less than 250 psi at the nozzle, and will dispense approx. 5–7 lbs. per minute at full trigger. High pressure (professional) systems use up to 1,000 psi and dispense up to 30 lbs. per minute at full trigger. 

    Q: How can I remove spray foam that gets on my skin?

    A: Remove any excess foam from skin by blotting with a rag, then wash several times with soap and lukewarm water. Take all listed precautions to prevent getting spray foam on bare skin. 

    Q: Will mold or fungus grow on my finished spray foam insulation job?

    A: Polyurethane foam will not support the growth of mold or fungus. Mold and fungus can grow on organic materials which the foam is in contact with, however. Protection Status