To patch cracks on highways and airport runways, professionals usually use liquefied crack sealant. This heavy duty material has a slightly rubbery feel when it dries. Although this is used in heavy duty construction situations, it is also great for residential and commercial properties. The main drawback to using liquefied crack sealers is the fact that it needs to be heated up before you can apply it. The liquid can be temperamental, especially if you don't apply it quickly enough and it cools down. This article explains how to use heat up crack sealers.
Cleaning the Crack
Before you pour, you need to clean out the crack. Thoroughly sweep it out or use a hose vacuum. If there are weeds growing out of your crack, you should definitely pull them and dig out some of the sand.
How to Heat up the Crack Sealer
First of all, there are cold formulas that are slightly easier to use, but they generally don't last as long. You can easily heat your sealer with a hot plate. With a few extension cords, you can have the hot plate right in the area where you are going to pour. The hot formula sealer comes in metal cans that can be set directly on the hot plate. While it is heating up, you need to stir the sealer. The heat will soften the liquid so it becomes easier to stir. You want the sealer to be soft enough to easily pour out of the can. Once it gets to this point, you want immediately pour it.
Pouring the Sealer
Pouring the sealer is simple, but you need a squeegee. This process works better with 2 people on the job. One person can pour the sealer while the other directs and controls the overflow with the squeegee. The key is to pour directly into the crack and let it overflow. Using the squeegee, you can press down the edges and ensure that there are no big edges left behind when it dries. In some cases, you will need to apply the sealant twice. Often the sealant will sink into the crack because there are cavities that cause to flow downward. If this happens, you should wait for the first coat to be completely dry (usually only takes 30 minutes or less) before applying the next coat.
Using hot formula crack sealer is definitely the way to go if you want the longest lasting repair. For further assistance, contact local professionals, such as those from Bill Mariotti Site Development Co Inc.