GAP Mastic MOD 201
Maxwell Products GAP Mastic MOD 201 is a hot-applied polymer modified asphalt mastic engineered for permanent wide crack repair, fatigue cracking, rutting, and broken-up pavement areas. Blended with specialized aggregates and modifiers, it stops water infiltration and restores ride quality on roads, parking lots, and municipal surfaces.
- Permanent repair solution for wide thermal cracks, fatigue cracking, rutting, and depressed pavement areas
- Polymer modified binder with 600% minimum tensile adhesion and 50% minimum mastic resilience
- Passes crack bridging testing at 0°F (-18°C) for reliable cold-climate performance
- Recommended application temperature of 370°F (188°C) with a 400°F (204°C) maximum
- Suitable for use around manholes, gutters, drains, and other fixed structures in flexible pavements
- Meets ASTM D8260, Type 2 specification
- Available with Polyskin packaging technology
- Description
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Description
Maxwell Products GAP|Mastic MOD 201: Polymer Modified Wide Crack and Pavement Repair Mastic
Wide thermal cracks, fatigue cracking, and broken-up pavement sections share one thing in common: left untreated, water gets in and the damage compounds fast. GAP|Mastic MOD 201 is built to stop that cycle with a hot-applied polymer modified formula that seals, bonds, and holds under real-world traffic and temperature conditions.
Unlike standard crack fillers, GAP|Mastic MOD 201 is a true mastic, a blend of polymer modified asphalt binder and engineered aggregates combined with performance modifiers. The result is a product with the flexibility to move with the pavement and the structural body to bridge wide defects without slumping or washing out.
Where GAP|Mastic MOD 201 Gets Used
This product is designed for defects that are too wide or structurally compromised for standard crack sealants:
- Wide thermal cracks caused by seasonal expansion and contraction
- Fatigue and alligator cracking in high-stress pavement areas
- Rutting and surface depressions
- Broken-up and distressed pavement sections
- Pavement joints and transitions around manholes, catch basins, gutters, and drains
It is particularly well suited for municipal streets, highways, and commercial parking lots where pavement movement and heavy load cycles demand a repair material with both flexibility and compressive strength.
Performance That Holds in Cold Climates
GAP|Mastic MOD 201 is tested and rated for Canadian conditions. The blended product passes crack bridging testing at 0°F (-18°C) across three cycles and passes rapid deformation testing at the same temperature. The binder remains flexible down to -15°F (-26°C), so repairs made in the fall are not going to open back up once winter sets in.
At the other end of the spectrum, the product maintains stability at 140°F (60°C), keeping repairs intact during hot summer pavement conditions.
Heating and Application
GAP|Mastic MOD 201 must be heated using indirect methods, either a double boiler or a hot oil circulating kettle with continuous agitation to keep the aggregate uniformly suspended in the binder. The recommended application temperature is 370°F (188°C). Do not exceed the maximum safe heating temperature of 400°F (204°C).
| Property | Requirement |
|---|---|
| Cone Penetration (77°F, ASTM D5329) | 70 dmm max |
| Softening Point (ASTM D36) | 200°F (93°C) min |
| Flexibility (1 in. mandrel, 90° bend, ASTM D3111) | Pass at -15°F (-26°C) |
| Tensile Adhesion (77°F, ASTM D5329) | 600% min |
| Resilience (77°F, ASTM D5329) | 35% min |
| No. 4 sieve, passing | 90% min |
| No. 16 sieve, passing | 10% max |
| BLENDED PRODUCT SPECS | |
| Density (77°F, ASTM D70) | 12.5 lbs/gal |
| Mastic Resilience (ASTM D8260) | 50% min |
| Effects of Rapid Deformation (0°F, ASTM D2794) | Pass |
| Crack Bridging, 3 cycles (0°F, ASTM C1305) | Pass |
| Mastic Stability (140°F, ASTM D8260) | 40.0 mm max |
GAP|Mastic MOD 201 meets ASTM D8260, Type 2 and is available with Polyskin packaging for cleaner, more efficient material handling on the job site.
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