If you decide to fill up all of the asphalt cracks on your parking lot yourself, the air pressure from a crack cleaning machine will allow you to get the initial cleaning work done quickly and efficiently. But since making a mistake here could mean that the sealant layer you apply will break apart and you'll have to start all over again, it's important to use the machine very carefully. Specifically, make sure to avoid these three pitfalls when you want to use a crack cleaning machine on your parking lot.
Starting Your Work When Winter Snow Has Already Set In
Even when there's no snow involved, the extreme cold of winter will put any sealant you apply at risk of cracking up. The problem will also be made significantly worse if the wind allows any nearby snow to settle back in the crack before you're able to put the sealant on.
Over time, this snow will turn back into water and interact with the chemicals in the sealant, greatly reducing the sealant's long-term structural effectiveness. Therefore, you should either start the crack repair process in the autumn or wait for spring to return.
Pointing The Machine's Nozzle Straight Down Instead Of At An Angle
Most crack cleaning machines work by blowing a hot and concentrated stream of air directly at a crack section. While this stream is very good at getting rid of even the smallest and most stubborn pieces of debris, the pressure could cause some of the asphalt to break up and become like dust if you're not careful. Even a very small amount of this dust that's left in the crack after cleaning could have a similar effect on the sealant that water will have.
To keep the air stream pressure from causing any unnecessary damage, keep your machine's nozzle at a steep angle relative to the ground instead of holding it straight up. Additionally, don't ram the end of the nozzle as far into the crack as it'll go. Instead, keep a healthy distance between the machine and the crack so that the air stream will have plenty of space to spread out and carry away debris.
Not Waiting Long Enough After Cleaning Before You Apply The Sealant
An especially hot air stream coming out of your crack cleaning machine will cause the asphalt's surface to warp slightly until its temperature goes back down to normal. To ensure that no warping will happen after you actually apply the sealant, leave the crack alone for at least a day. If inclement weather is incoming, cover the crack with a thick tarp.
For more information, or if you would like professional assistance, contact Pavemasters or a similar company.Share