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• 30lb block
• Direct Fire Formula: Tolerates reheating and will not jell in kettle.
• No Tracking: A tough and pliable formula for parking lots & driveways.
• No Bleed Through: Ideal for crackfilling under sealcoating, slurry seals and overlays.
• Sets Firm & Fast: You can seal in 15 minutes or less.
• Resilient: Formulated to perform under the expansion and contraction conditions of all climates.
• Proven Performance: Meets and exceeds the standards of AASHTO M173 and ASTM D6690 Type I.

Heating: Thermoflex should be heated in a vessel designed for heating hot pour crack sealants. Some means of agitation and monitoring of temperature are recommended. The range of safe heating temperature for the product is between 350-400° F. Overheating Thermoflex beyond this recommended range can degrade the material and create a fire hazard. Thermoflex is suitable for use in a direct fire melter or an oil-jacketed double boiler. It is also an excellent product for use through pumping type kettles. Application: Install heated sealant directly into cracks/joints not to exceed a 4-inch-wide band. Thickness should be controlled to not more than 1/8 inch above pavement surface. Finished sealed cracks and joints will be uniformly level. Refill to achieve a flush to 1/8-inch concave surface appearance. One lb. of Thermoflex will fill the following lineal feet: Product Data Sheet