DIY Expanding Foam Insulation

There are several manufacturers of expanding foam insulation who offer various products for the do-it-yourself handyman and small contractor. You might have a small insulation job that does not require the services of a large insulation installer.

Dow Chemical Froth-Pak Spray Foam

There are different products for different purposes. It is important to find the matching product for your job. These products generally come in handy-sized packs or cans and are easy to use.

Here is a list of typical special purpose expanding foam insulation products. Check the labeling to determine if the product is designed for interior or exterior use, toxicity to animals and plants, cleanup, and storage.

Acrylic/Latex Foam Sealant

Clean up with soap and water
Low expansion
Reusable dispensing
Interior use

Minimal Expansion Sealant

Seal small cracks and gaps
Insulate against energy loss

High Expansion Sealant

Fill larger holes and gaps
Block insects and pests

Window & Door Sealant

Seal around window or door frames
Low pressure to not bow

Exterior Filler and/or Adhesive

Adhesive for landscaping projects
Direct water flow in and around water gardens
Fill decorative planters for artificial arrangements

Fire Block Foam Sealant

Fill and seal fire service penetrations
Retard fire and/or resist flame

As you can see from this list, there are many choices that give you the right product for your expanding foam insulation and sealing application. Wear protection eyewear and clothing for safety and easy cleanup whenever you use expanding foam insulation.

11 thoughts on “DIY Expanding Foam Insulation

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  5. Alex Thesmar

    I have a client who has had a burst pipe on a fire suppression pipe which is a hard to reach area from the attic. There is very it is close to a couple of studs and is going to be very difficult to wrap. Is there an expanding foam insulation that is safe to use with CPVC?

    Thanks for your help!
    Alex Thesmar

  6. Eric

    I want to improve the soundproofing on two existing interior walls (between bedrooms). Is there an solution that does not require me to tear down walls or put up another layer of drywall? I just want to improve the soundproofing. Thanks

  7. admin Post author

    Hi Eric,
    You could consider injecting expanding foam insulation with a hose through a hole into the wall space, between the studs. The hole could be patched or, if you carefully remove the baseboard trim, be hidden from view. Using low expansion foam reduces risk of too much pressure on the drywall.

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