Insuseal
Insuseal is a single-component, polymer-modified bituminous sealant designed for hot application into cracks in asphalt concrete pavements, concrete roads, and airport runways.

Engineered for the job it protects.
Insuseal is a single-component, polymer-modified bituminous sealant designed for hot application into cracks in asphalt concrete pavements, concrete roads, and airport runways. Compliant with ASTM D6690 Type II requirements, it delivers a durable, flexible seal that effectively prevents water infiltration, resisting the freeze-thaw cycles, traffic loads, and UV exposure typical of demanding road environments.
Insuseal is supplied in solid form and melted in approved direct-fire or oil-jacketed applicators before being poured or injected into prepared cracks. The polymer modification ensures exceptional elasticity and resilience — allowing the sealant to flex with pavement movement without cracking or debonding — providing long-lasting waterproofing protection that significantly extends pavement service life and reduces maintenance costs.
- Hot-applied, single-component polymer-modified bitumen sealant
- Compliant with ASTM D6690 Type II requirements
- Excellent adhesion to asphalt and concrete substrates
- High elasticity — resists pavement movement and traffic loads without cracking
- Effective waterproofing, preventing water damage and structural deterioration
- UV and thermal ageing resistant
- Extends pavement service life and reduces long-term maintenance costs
Insuseal
| Property | CODE | TEST METHOD | UNIT | RESULT |
|---|---|---|---|---|
| Appearance | — | — | — | Black solid (fluid when heated) |
| Specific Gravity | — | ASTM D70 | — | 1.0 – 1.1 |
| Cone Penetration (25°C, 150g, 5s) | — | ASTM D5329 | dmm | ≤ 90 |
| Cone Penetration (60°C, 150g, 5s) | — | ASTM D5329 | dmm | ≤ 250 |
| Softening Point | — | ASTM D36 | °C | ≥ 80 |
| Resilience at 25°C | — | ASTM D5329 | % | ≥ 60 |
| Bond, −29°C, 50% Extension | — | ASTM D5329 | — | Pass |
| Flash Point | — | ASTM D92 | °C | > 230 |
| Safe Heating Temperature | — | — | °C | ≤ 218 |
| Application Temperature | — | — | °C | 175 – 190 |
*Insutech reserves the right to modify product specifications, descriptions, and technical information at any time without prior notice.
Application, Step by Step.
Rout or open narrow cracks where required, then clean thoroughly with compressed air — faces must be sound, dry and free of dust and loose particles.
Heat the compound in an approved melter with continuous agitation to the 175–190°C application range. Never exceed the 218°C safe-heating limit.
Fill the crack from the bottom up in one continuous pass, slightly proud of the surface, so no air pockets remain.
Strike the sealant off level with the surrounding surface before the compound cools and stiffens.
Allow the joint to cool fully; dust with fine sand where early trafficking is expected to prevent pick-up.















