Choosing the appropriate spray foam for your project is one of the most critical steps in successful air-sealing or insulating jobs. While many foam products are designed to block air leakage and improve energy efficiency to some degree, their roles are unique.
Two-component foams go beyond air sealing to provide insulation performance across larger areas, making them essential for projects that require code-compliant R-value and a Class A Fire Rating.
One-component foams, on the other hand, excel at precision—from filling small cracks, joints, and irregular spaces to quickly covering tight, challenging spaces that are hard to reach.
The key to getting the best results is knowing when to use each of these options. That also means understanding when to use them together—for example, when combining broad coverage, two-component foam insulation with fine-detail sealing to eliminate gaps.
Bead Foams
Traditional bead foams are ideal for small cracks, gaps, and joints. There is a range of foam sealant products on the market that are formulated for a range of specific applications, from creating tight, water resistant seals between framework and rough openings, to sealing gaps to prevent energy loss and pest entry.
Broad Coverage Spray
For air leaks in wide gaps or hard to reach areas, keep a one-component broad coverage spray foam in your toolkit alongside bead foam. It’s ideal for jobsites that require sealing both narrow and larger gaps—especially where bead foams fall short.
Designed to create a durable, weather-resistant seal from a distance, this spray reaches tricky spots like attics, crawlspaces, and other tight areas with ease.
Two-Component Spray Foam
A closed-cell two-component foam product is the right choice for projects that demand sealing and insulation, fire-rated performance, and broad coverage.
Use in large areas, closed cavities, and jobsites that require consistent curing and higher insulation performance.
Air seal + insulation in one step to provide an airtight seal and higher insulation performance when you need to meet R-value requirements.
Meet code compliance with a Class A Fire Rating and R-value of 12.2 at 2 inches. A two-component foam system like Froth-Pak meets consistent curing requirements and is perfect for door assemblies.
For comprehensive coverage, combinewith a closed-cell one-component product like Wide Spray to quickly seal tight areas.
Integrate the Use of Two-Component and One-Component Foam Products to Optimize Project Results
Bead foams are perfect for precision. Broad coverage sprays step up in tricky and uneven spaces, and a high-performing two-component foam product delivers consistent performance on a larger scale. Used together and in the right combination, these spray foam products ensure there are no gaps in performance across a wide range of projects.
For more information, visit frothpak.dupont.com.
