Code Black Asphalt LLC proudly uses Brewer Cote J-485 concentrated refined tar emulsion sealer. Read excerpts from The Brewer Company Technical Bulletin on J-485 below to learn more. 


  • Formulated with a select blend of fillers proportioned for exceptional wear resistance, it exhibits outstanding wear resistance and is highly resistant to gasoline, oil and ultraviolet light, providing superior protection for asphalt pavement surfaces.
  • J-485 meets or exceeds all composition and performance requirements of ASTM Specification D5727 (formerly Federal Specification RP-355).


  • J-485 must be applied to clean, structurally sound asphalt pavements that are surface cured and free from all loose and foreign debris.
  • Wide cracks, alligatored areas and soft or sunken pavement must be properly repaired or replaced prior to sealing.
  • Oil and grease spots must be properly cleaned and primed prior to sealing.
  • All vegetation should be treated with a water based herbicide and removed during final surface preparations. 
  • J-485 can be applied by using spray equipment, mechanical squeegee equipment, brush or rubber squeegee, designed for such purpose. All application equipment must be capable of applying a sufficient quantity of J-485 to the pavement to ensure a uniform coating at the specified application rates. 


  • J-485, as supplied, is a concentrated pavement sealer designed to be mixed with water and mineral aggregate to form a ready to use pavement coating. The components are proportioned based upon a number of factors including age, texture and porosity of the pavement to be sealed, as well as the amount of traffic the pavement will receive. 
  • Approved latex additives may be added to J-485 to improve the sealer's durability, gas and oil resistance, drying time and color. 


  • J-485 must be applied only when ambient and pavement temperatures are a minimum of 50 degrees Fahrenheit and are expected to remain there for at least twenty-four (24) hours after sealer application. 
  • J-485 must not be applied during rainy conditions. 


  • Apply J-485 to unsealed asphalt pavements or to surfaces previously sealed with refined tar emulsion based pavement sealers. 
  • Pavements previously sealed with asphalt emulsion pavement sealers should be allowed to weather for a minimum of two (2) years or until 50% of the pavement aggregate is exposed, before sealing with J-485. 
  • New asphalt pavements and repair areas should be allowed to cure a minimum of sixty (60) days at a minimum daytime temperature of 60 degrees Fahrenheit before sealing with J-485. A simple test to determine if a pavement is ready to be sealed is to cast a gallon or two of clean water over the surface. If the water sheets out, uniformly wetting the surface and no oil rings appear, the surface is ready to be sealed. If the water balls up and/or shows signs of oil rings, the surface is not ready to be sealed and should be allowed to cure longer.