Dow Great Stuff Pro Gasket for drywall and framing
September 24, 2017 - Dow Building Solutions—a global business unit of DowDuPont Specialty Products—introduced a water-based, one-component sealant foam technology for improving air sealing performance by creating a gasket between drywall and framing: Great Stuff Pro Gasket.
By Anthony Capkun
This formulation is compressible when cured, allowing a flat plane when drywall board is attached to the wall frame. The flexible foam bead stays in place and is durable enough to withstand scraping and rubbing when drywall is slid into place.
Unlike mechanically fixed gasketing methods—where the gasket may pop off or tear during drywall installation—this material is very tolerant of abrasive contact, says Dow. With air leakage accounting for 40% of energy loss in new homes, this foam solution allows for a smooth, even drywall installation.
The foam is applied to the face of framing lumber around the top plate, bottom plate and all rough openings and left exposed to air for cure. Depending on humidity, cure take 2 to 24 hours.