Acrylic Latex
Because latex sealants are paintable, they are ideal for interior application, especially for your window. However, latex caulk is not suitable for extreme temperature changes that are often subjected to your windows. Thus, it should never be used in exterior caulking, especially if you live in very hot or cold areas.
Polyurethane Caulk
Because it is exceedingly durable, it is frequently used in commercial properties. However, polyurethane has less flexibility than other types of caulks and cannot be used in freezing temperatures.
Polyurethane application is way more difficult than other kinds and removing old caulk from a masonry surface may take twice as long as removing silicone sealer in a window caulking. Though you can probably purchase this at a local hardware store and a caulking gun, avoid doing it yourself.
Silicon-based Caulk
Silicone-based caulk is a good solution for structures in cold or hot climates. Because of its versatility and elasticity, this caulk may change shape in response to weather variations without breaking or splitting surfaces like your windows.
Its use is simple and convenient, and it may be used in buildings with temperatures ranging from -20 to +45 degrees Celsius. Unfortunately, silicone sealants cannot be painted over; nevertheless, most manufacturers now produce silicone-based sealants in various colors.
To obtain the cleanest possible result and perfectly straight line, it is best to use masking tape. Contractors apply the tape to cover both sides of the line to be sealed, and then remove the tape before the sealant is dry.
Silicone caulk may be used on various surfaces and cures within 24 hours.