Crack Sealing prolongs the life of asphalt. Repairing cracked areas early is the best way to prevent the expensive cost of repaving. The application of poured sealant seals the fractured asphalt. By sealing the asphalt correctly,  future cracking will be minimized by preventing moisture and fine aggregates from entering the crack. The sub-base material of the asphalt will also remain intact.

Northern Crack Sealers Inc. has perfected the system of crack sealing by creating efficient processes of preparing the area and applying sealant to cracked asphalt.

Our Hot Lance Crew is equipped with advanced redesigned hot lance units which are responsible for cleaning the cracks. Hot lance units are connected to an air compressor system and propane fuel tanks. A uniquely modified tip in each hot lance unit creates a vortex flame which concentrates the air pressure. Our specially designed hot lance equipment applies dry, hot air pressure to remove any debris on top and within the fractured asphalt. The asphalt is now prepped for the application of hot pour rubber sealant.

Immediately behind the Hot Lance Crew is the Melter Crew. Our newly designed Melter unit heats rubber sealant to approximately ±380° F using an oil-jacketed system allowing sealant through our heated wand system (HWS). The sealant is applied to the crack directly from the wand. The hot sealant is continuously moved with a V-shaped squeegee over the crack until the crack is filled. NCS Inc. also “overbands” each crack. “Overbanding” is a process where rubber is applied approximately 1-2" (25-50mm) to each side of the crack to ensure the crack is sealed properly. This process also will help the crack retain less moisture. An eco-friendly sealant barrier material is sprayed on top of the freshly applied rubber sealant in order to allow vehicles and pedestrians to immediately pass over the rubber material. This material removes the tackiness of the rubber without compromising its purpose and is recommended over the powdered hazardous material applied by other contractors.

Sealant Application Summary

  • Newly designed hot lance unit applies dry, hot air to clean and heat the fractured asphalt
  • Creating "manufacturer recommended" temperature of hot pour sealant using the Heated Wand System (HWS)
  • Applying the sealant with the proper method to ensure successful sealant placement
  • Protect the freshly applied sealant with an eco-friendly sealant barrier