Types of Caulk
Once upon a time, when you had to "caulk" something, you went to the hardware store to get a tube of some white stuff to fuse on anything that had a crack or a gap to fill. Well, times have changed so much so, that there are many types of speciallized filler for highly specific applications. Sealants to retard fire, insects, mold, water, you name it, it's probably out there. For our purposes, we would like to examine the basic types of caulk that will be used for general renovation procedures such as filling gaps left after trim installation, to sealing windows and door frames from the elements. The first, and probably most common all-purpose filler, is the latex "painter's" caulk used for all sorts of filling and sealing applications. This filler can be used in many areas, most common being to "smooth out", or finish something that has been repaired or installed. Using the example of filling small gaps left after new (or repaired) trim installation, you can see how it fills any slight gap to a smooth, consistent finish. (this example shows newly installed trim that was just filled, and painted)
This next example shows a workman using a to apply caulk to a corner of a wall that has some plaster irregularities, or "finish coat" (but painted-over) blemishes , that make it look rough and unfinished. By applying a generous bead to the wall corner, you smooth over the blemishes for a finished look.
The great thing about latex caulk is that it is a water-based filler, meaning that it can be washed off with water for easy clean up.
Protection from moisture and the elementsAnother basic type of sealer is that of silicone. Use 100% silicone to form an impenetrable seal from moisture and the elements for maximum protection. A slightly less expensive (and messy) sealer is an acrylic latex/silicone blend that provides excellent sealing capabilities and long-lasting protection. The areas to use these types of sealers are: Bathroom - particularly around the bath tub or shower, toilet (at floor), and around the sink/countertop backsplashAround kitchen countertops and backsplashesExterior windows and doorsLaundry room - sealing the joint where the baseboard trimwork meets the surface of the floor
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