Hot-melt road crack sealant (-10℃ / -20℃ / -30℃)

Hot-melt road crack sealant (-10℃ / -20℃ / -30℃)

Hot melt road crack sealant is a high-performance maintenance material used for crack repair and waterproof sealing of asphalt and cement pavements, featuring excellent adhesion, elasticity, waterproofing, and weather resistance. It is suitable for maintenance of highways, municipal roads, bridges, and airport runways, and offers multiple low-temperature grade options of -10℃, -20℃, and -30℃ to meet construction needs in different climatic regions.

Classification Crack repair

Product images are for reference only. Actual packaging, specifications, and markings should be confirmed through consultation.

Product Details

Product Introduction

Hot melt road crack sealant is a high-performance hot melt material specially used for road crack repair, waterproof sealing, and preventive maintenance. The product is manufactured using high-quality modified asphalt, high-molecular polymers, and anti-aging materials in a composite process, featuring excellent low-temperature flexibility, adhesion performance, waterproof performance, and anti-aging performance.

During construction, the material is heated and melted using specialized heating equipment, then poured into the cracks. After cooling, it forms a highly elastic sealing layer that effectively prevents rainwater, sediment, and debris from entering the road base, reduces further crack expansion, and extends the overall service life of the road.

Products are widely used in road maintenance projects such as highways, municipal roads, bridges, airport runways, industrial parks, and parking lots.


Temperature class

Depending on the climatic environment of different regions, the product offers multiple low-temperature grades:

-10℃ Type

Applicable to ordinary cold regions and mild climate environments.

-10℃ Type

Suitable for cold northern regions and low-temperature winter environments.

-10℃ Type

Applicable to road maintenance projects in Northeast, plateau, and extremely cold regions.


Product Features

Excellent Low-Temperature Flexibility

Maintains good elasticity in low temperature environments and is not prone to brittleness or cracking.

Strong Bonding

Has excellent adhesion to substrates such as asphalt and cement, and is not prone to peeling.

High Elasticity & Crack Resistance

Can adapt to road thermal expansion and contraction as well as changes in vehicle load.

Waterproof Seal

Effectively prevent rainwater penetration, reducing damage to the substrate.

Strong aging resistance

Maintains stable performance even after long-term exposure to sunlight, rain, and snow.

Wear-resistant and pressure-resistant

Applicable to areas with frequent vehicle traffic.

Hot Melt Construction

Good fluidity after heating, high construction efficiency.

Fast traffic speed

After construction is completed and cooled, traffic can resume.


Scope of Application

Highway Crack Repair Municipal road maintenance Asphalt pavement crack sealing Cement pavement joint treatment Bridge expansion joint maintenance Parking Lot Crack Repair Airport Runway Maintenance Industrial Park Road Maintenance


Construction Method

**1. Crack Cleaning

Remove dust, debris, and loose particles from inside the crack.

2. Slot Processing

Use slotting equipment to treat cracks as needed.

3. heating material

Use a dedicated hot melt device to heat to the working temperature.

4. Crack pouring construction

Pour the melted crack sealant evenly into the crack.

5. Natural Cooling

Open to traffic after the material has cooled and solidified.


Product Advantages

Compared to ordinary asphalt materials, hot-melt road joint sealant offers stronger elastic recovery, better waterproof sealing performance, and a longer service life, effectively reducing the problems of repeated cracking and rainwater erosion.

The product is suitable for road preventive maintenance projects, can reduce later maintenance costs, improve the overall service life of the road, and is a common professional crack repair material in modern road maintenance engineering.

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