Siliconized Acrylic Caulk

High quality siliconized acrylic caulk is a good choice for many interior or exterior painting projects. This type of caulking remains flexible over a wide range of temperatures. Making it suitable for exterior caulking applications, such as sealing around windows or doors and gaps between fascia boards or siding.

Generally interior surfaces remain stable, producing less movement, but interior caulking still requires a good sealant. Siliconized acrylic sealants have become the standard painters caulk, able to adhere to a wide range of materials. Plus is fully paintable with acrylic or alkyd paints when fully cured.

When applied over minimally moving gaps, acrylic sealants will have good paint crack resistance and tooling characteristics.

All painting products are manufactured in different grades of quality, and caulking is no exception. The cheaper products will harden and crack sooner.

You have probably noticed that most sealants have a number associated with there useful life span, example is 20 year. This represents an assumed amount of years the caulking will remain flexible and adhered to a given surface.

A general rule to choosing an acrylic caulk is select the highest number possible. But, remember this number is based on assumptions and lab tests. The caulking won't actually last this long unless its kept in the tube.

Most caulking compounds can be used on gaps ¼ inch or less. Wider gaps will require two applications and deep cracks the use of backer rod.

Acrylic caulking is a good general-purpose sealant that can last for a few years. The surfaces to be caulked should be sound and stable offering very little movement. Even with the addition of silicone to the formula, this type of caulking compound will eventually harden and split.

Always choose a good name brand or consult with your local paint store for recommendations.