Hot‑Applied Asphalt Road Crack Sealant for Pavement Crack Repair
Our hot‑melt road crack sealant comes in five temperature‑resistant grades from Type‑I to Type‑V, adaptable for‑0℃ to‑40‑degree‑cold‑region pavement maintenance.Made from modified‑asphalt raw‑material, it features stable penetration, good compression‑resilience recovery, proper high‑temperature viscosity and reliable anti‑aging performance.The standard construction workflow includes grooving, crack cleaning, crack pre‑heating, hot pouring at 193℃ and 15‑minute cooling curing. Strong adhesion to asphalt & concrete pavement cracks stops water infiltration and prolongs road‑service life. Available for small‑batch 100‑kg samples and bulk 1‑ton‑plus orders.
| No. | Performance Indicator | TypeⅠ | TypeⅡ | TypeⅢ | TypeⅣ | TypeⅤ |
| 1 | Penetration (25℃, 5 s, 150 g) (0.1 mm) | ≤70 | 50~90 | 70~110 | 90~150 | 120~180 |
| 2 | Compressionresilience Recovery Rate (25℃) (%) | 3070 | ||||
| 3 | Viscosity (190℃) (Pa·s) | 14 | ||||
| 4 | Density (g/cm³) | ≤1.50 | ≤1.45 | ≤1.40 | ≤1.35 | ≤1.30 |
| 5 | Properties after Thermalageing (190℃)Softening Point (℃) | ≥90 | ≥80 | ≥80 | ≥80 | ≥70 |
| Properties after Thermalageing (190℃)Lowtemperature Tensile Test | 0℃, 50% elongation, pass 3 cycles | -10℃, 75% elongation, pass 3 cycles | -20℃, 100% elongation, pass 3 cycles | -30℃, 150% elongation, pass 3 cycles | -40℃, 200% elongation, pass 3 cycles |
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