DIY Network

Tips on Choosing and Using Caulk Guns

DIY experts offer tips on a variety of caulk guns and a foam dispenser, making it easy to choose the right tool for any job.

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foam used to insulate around doors and windows
Photo 5 of 5Once foam is squeezed out of the tube it expands to fill in cracks.

Foam Dispensers(5 of 5)

Foam is used to insulate around doors and windows. After it's squeezed out of the tube, the foam expands to fill in the gap.

One foam dispenser available today has a speed adjustment so you can attain the size bead you need. When the speed is turned all the way down, a vapor lock is created in the tool so that the foam doesn't stay inside the dispenser tube.