There's a picture on that web page of a soldier using a caulking gun.
The caption indicates that he's using silicone caulk to fill the gap
between a baseboard and the wall. Silicone caulk, unless specifically
stated otherwise on the tube, is not paintable. From the looks of the
tube of DAP he's using, it's more likely a siliconized acrylic caulk.
I wonder how many people will be mislead by that picture, use silicone
caulk in a similar application, and find out to their horror what a
nightmare it is getting rid of the silicone so the next coat of paint
Sums it up nicely, but it's erroneous information. There is no clear
demarcation line based on joint movement that categorizes caulk. The
type of caulk is chosen based on the application criteria, such as -
expected amount of joint movement, paintability, exposure, life
expectancy of the installation, and cost.
For all intents and purposes there is no difference between the
designations caulk and sealant. Pick one you like. The term caulk
won't confuse anyone who has ever applied or used the stuff, or watched
a DIY show. Sealant is a broader term - think of the liquid goo
sealant for car tires, Flat Fix, that comes in an aerosol can.
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