We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is Foam Adhesive?

By Lee Johnson
Updated May 17, 2024
Our promise to you
About Mechanics is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At About Mechanics, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Foam adhesive is a polyurethane-based bonding agent that is used in construction work and is suitable for many common building materials. These adhesives are often used to secure roofs and can also be used for other materials, such as drywall and plywood. They provide a watertight, solid bond between materials and are bought in tubes or as a spray. They are available from many suppliers of building materials and are favored by many professionals because of the ease of application and the strength of the resulting bond.

Polyurethane is a durable material. It is resistant to weather, fluctuations in temperature, oils, fats and even gasoline. As a result of the reliability of the material, it is often used to secure roofs onto homes for hurricane protection. When made into a foam adhesive, polyurethane comes out as soft foam and quickly sets into a hard adhesive, forming a tight, permanent bond between the desired surfaces.

Many brands of foam adhesive come in tubes that need to be attached to a caulking gun to be applied. Caulking guns are cylindrical frames, with a large circular plunger that is used a trigger. There is a spout at the top of the tube, which concentrates the stream of foam and enables more precise application. Caulking guns typically are available in any hardware store.

Some types of foam adhesive also come in spray form. This makes application slightly simpler than it is with a caulking gun, but it doesn’t allow the same level of precision in the application. Spray foam adhesive is especially useful for bonding things such as drywall, where the foam used in the application will be hidden. The foam can be quickly and easily applied, and the slightly messier application won’t make a difference to the overall appearance. Any protruding foam can be removed by cutting it after it has set.

A foam adhesive virtually removes the need for nails, and it can be used for many building applications as a standalone adhesive. Also, most foam adhesives are nontoxic and environmentally friendly. Unlike many other adhesive products, foam adhesive is odorless and generally sets within 10 minutes of application.

Using foam adhesive also helps reduce heat loss in the home. The foam forms an airtight seal because it is so malleable before it sets. By reducing the amount of gaps between the surfaces that it bonds, foam adhesive reduces heat loss and increases the surface’s sound absorptive properties.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
By candyquilt — On Oct 08, 2014

Foam adhesive is wonderful. I wish I had discovered it earlier. I've been using it around the house and even in my car to re-attach/fix various problems, and it has worked every time. The only downside is that the nozzle has to be cleaned after each use. Otherwise, the nozzle gets clogged and it doesn't spray. I learned this the hard way when I first bought it. Thankfully, I was able to get the spray to work after a few tries. Now, I make sure to clean the nozzle each and every time. This is the only issue I have with this adhesive. Otherwise, it's great, it holds very well, dries fast, and is durable.

By serenesurface — On Oct 07, 2014

@donasmrs-- I've used both and they are not the same thing. I think they work best for different things. Aerosol adhesive is usually clear and it is most often used for artwork or craft projects. Some even use it for mounting photos.

Foam adhesive, as the name suggests, comes out like a foam and sometimes it's colored. So it's not good for projects where the adhesive will be visible. The most popular use of this adhesive is to glue together pieces of styrofoam pieces and plastic.

What both have in common is that they're both messy adhesives and can easily get everywhere if not pointed and sprayed correctly. I suggest using both outdoors in fresh air and with an old t-shirt on.

By donasmrs — On Oct 07, 2014

Is aerosol adhesive better or foam adhesive? Is there a significant difference between them in terms of use and effectiveness?

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.