Crack Sealant
ASPHALT CRACK REPAIR
One of the most serious problems with aging pavement is cracking. As pavement ages, it shrinks, hardens, and becomes more brittle. Cracks form as a result of thermal expansion, aging, base degradation, and reflection of cracks from underlying layers. Hot-applied, rubberized asphalt crack sealants are designed to seal these cracks and minimize the penetration of water into the base below the pavement.
Natural ground movement and thermal expansion/contraction can cause various forms of pavement cracking. If left untreated, pavement cracks will widen, allowing water to channel and damage the pavement base. A compromised base will quickly lead to fissures, gaps, and pavement deterioration, such as voids, potholes, raveling, and more. But sealing new cracks as part of a regular maintenance program can drastically slow pavement deterioration and greatly extend the service life of your pavement.
FAQ:
Question
Will the sealant heat up faster if the thermostat is turned to its maximum setting?
Answer
No, in fact it could be dangerous. It takes the same amount of time for the sealant to reach recommended pour temperature, no matter how high the setting. If the setting is maximized, you risk exceeding the safe heating temperature, which may result in fire and compromised performance. Refer to Sealant Product Data Sheet for specific information and guidelines.
Question
Why is the crack sealant coming out of the crack after it has cooled?
Answer
Most likely the crack was either wet or dirty. Sealant will not stick to either. To prevent this, blow out the cracks with pressurized air.
Question
Why should I rout my cracks before I seal/fill them?
Answer
By routing the cracks you remove the oxidized
fractured pavement from the crack surface and expose intact vertical walls for the sealant to bond to. The increased area of sealant in the crack also accommodates for more movement. This will extend the sealant's service life by up to 50% over
non-routed cracks.
Pavement Preservations Specialties Inc.
"Making The Quality Difference"