Cracks have ends. If you start and stop your cut abruptly, stress will concentrate at those points. Drill a small 1/4-inch hole at each end of the crack before cutting. This "stop hole" prevents the crack from propagating further.
Let’s revisit the keyword: great cut 4 crack better. great cut 4 crack better
For pavement, sidewalks, or warehouse floors, the standard “cut and seal” method is insufficient. A great cut requires a walk-behind concrete saw or an angle grinder with a diamond blade. Cracks have ends
After cutting, use a wire wheel or a compressed air lance (the “great clean”). Any dust left behind will prevent adhesion. For a truly superior repair, apply a bonding agent immediately after the cut, before dust settles again. | Application | How a “Great Cut for
| Application | How a “Great Cut for Crack” Helps | |-------------|------------------------------------| | Glass/wafer dicing | Scribe-and-break: a precise shallow cut creates a stress concentration, enabling a perfect straight crack for separation. | | Concrete/asphalt repair | Cutting along a crack (crack chasing) before sealing – requires a diamond blade that follows irregular paths without chipping. | | Metal fatigue testing | Notch cutting to initiate a fatigue crack at a predetermined location (ASTM E647 standard). | | Composite machining | Special router bits that prevent delamination and crack spread along fiber layers. |