Not all cracks are good candidates for crack sealing
Hairline cracks, fatigue cracking, alligator cracking, very wide cracks, foundation cracks, edge cracks, vertical seams, and some oil-contaminated cracks may not qualify unless specifically included
Crack seal seals cracks; it does not always fill them flush to the surface
Material may settle into cracks after application; this does not mean it failed
Weed treatment should be handled before service, since vegetation can interfere with long-term performance
If cracks have hidden voids underneath, extra material and extra charges may be required