Blacktop sealer generally consists of a mixture of asphalt, water, mineral fillers, and other additives that serve to protect your asphalt from damage caused by gas, oil, salt, and weather. By sealing the surface of your parking lot, the coated pavement stays flexible. This flexibility is important because the more flexible your asphalt is, the more it can withstand traffic without cracking.
If you have a blacktop driveway or parking lot area, you can make it last a lot longer and keep it looking nice by sealing it frequently. Sealers sit on the top of your surface and act as a barrier that prevents the elements and chemicals from staining and eating away at the material. Property owners and homeowners that live in particularly cold climates like ours will need more frequent sealcoating.