Great Stuff Construction Adhesive: Ideal for Subfloors & Tight Bonds

June 4, 2025
3 min read

Why should I use a foam construction adhesive?

Foam construction adhesive has all of the properties of traditional subfloor construction adhesive, pro-grade polyurethane bonding strength, ASTM D3498 certified for subfloor applications, pliant beads and 14-minute initial tack time, delivering exceptional performance in the field while also offering many advantages to legacy products. The foam expands out of the can, allowing for significantly more product to fit in each can than a normal tube. Additionally, the foam is moisture-cured, meaning that in wet, frozen and rainy conditions, the product actually dispenses and adheres even better than normally. Great Stuff Construction Adhesive provides pro-level performance that users expect with significant savings and benefits.

Is Great Stuff Construction Adhesive easy to apply?

Yes, in fact, users find the product much easier to apply than traditional construction adhesive. Whether you use the gun or the Smart Dispenser, just activate the trigger to start dispensing, and the adhesive will start flowing. Without the need to squeeze caulk out of a tube, there is less fatigue on the user, especially in cold temperatures when adhesive starts to harden. Additionally, the adhesive is dispensed quickly and continuously, speeding up the application by as much as 2x.

Won’t a foam bulge the OSB, or overflow over the joists?

Great Stuff Construction Adhesive, unlike the other Great Stuff expanding foams, has a low expansion, collapsing formula, designed to expand out of the can and then quickly collapse down to the size of a traditional caulk bead. This means more adhesive can fit in the can, while the malleable foam compressed under the weight of the substrates, just like traditional caulk. This also means the foam does a better job of filling small gaps that arise from the natural bowing of OSB and joists, further reducing floor squeaks.

Is it just for Subfloor?

While the product’s high-yield and flexible working time makes the product ideally suitable for subfloor applications, the high-strength polyurethan adhesive is also a great solution for foam panels, drywall, concrete and many other types of common construction materials.

How will this product save me money?

While the product costs more than the traditional 28oz tube of construction adhesive, there is ~8x more adhesive coverage in a can of Great Stuff Construction Adhesive with Smart Dispenser. See below for an overview of the cost savings.

Do I need any extra applicators or accessories for this product?

Great Stuff Construction Adhesive comes in two formats – the 26.5oz Pro-14 Gun Compatible can and the 16oz Smart Dispenser can. The 26.5oz attaches to the Pro-14 gun that provides maximum precision, reach and feel. The 16oz Smart Dispenser can is an all-in-one product designed to provide exceptional application with no other equipment needed. Both products provide pro-grade performance and an easy-to-use experience.

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