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This product includes 2 cans of 341557.
Dow GREAT STUFF Gaps & Cracks 341557 is a polyurethane-based insulating foam sealant that fills, air-seals and insulates small gaps (less than 1 inch) inside or out. But you probably guessed as much from the name. What you might not have guessed is how easy it is to use or how it expands to take the shape of cracks and voids to form a durable, airtight, and water-resistant bond that eliminates unwanted airflow and helps reduce condensation.
The straw foam Great stuff loses between 10 to 15% of its Yield through the straw, whereas the Pro Gun draws every bit of foam from the can and is much quicker on the job. Time and Yield are essential ingredients for profit.
Applications: Filling, sealing and insulating of joints, voids, and cavities. Also approved for use as an alternative fi reblocking material in indoor and outdoor-to-indoor plumbing, HVAC, gas and electrical penetrations.
Installation: Read all instructions and safety information (MSDS) before using any product. Foam bonds to skin quickly - wear gloves, eye protection and work clothes during application. Use drop cloths.
Surface Preparation: Surface should be free of oil, grease and excess moisture.
Application: Great Stuff Pro is applied with a gun applicator at the junction of the plate line and the slab or foundation, any penetration through the top or the bottom of the plate line, cracks and holes in the exterior sheathing from penetration made for utility services, corner and T-wall intersections, and any other place where air might penetrate the exterior envelope.
Storage: Store in cool dry area in upright position.
Limitations: Great Stuff Pro professional foam should not be left permanently exposed to ultraviolet light.