Understanding the Differences Between Asphalt and Refined Coal Tar

We can all agree that sealcoatings are an indispensable component of pavement maintenance programs, and that the majority of these materials are based either on refined coal tar or asphalt. It is therefore imperative that both property owners and sealcoating professionals understand the very basic differences between asphalt and refined coal tar. You may not remember, but coal tar was also used quite commonly for road construction as recent as the 1970s and is still in use for roofing compositions. The use of coal tar for road construction fell out of favor primarily due to its availability, and to a certain extent, to softening under elevated temperatures, much more so than with asphalt. 

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Sand or Aggregate in Sealcoatings - Their Value and Selection

Select grades of clean angular, quartz sand or aggregate are commonly added to sealcoatings. Boiler slag or coal slag, which is an amorphous mixture of Iron, Aluminum and calcium silicates, is available under the brand name Black Beauty, also commonly used with seal coatings. In the following paragraphs, the descriptions mentioning sand, largely apply to Black Beauty as well. Both materials supply the following benefits:

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Altering Sealer Mix Designs to Suit Cure Conditions

Sealcoating professionals frequently ask as how to change the mix design to suit the weather related conditions, sand/aggregate loadings or simply in the amount of water in the mix. Before we attempt to answer such questions, it is imperative to understand the fundamentals relating to sealer drying, film formation, mechanism and the factors which influence the proper set and final cure of sealer films. Lets us start with the basics; sealer composition, film formation, the conditions for proper film formation and finally the adjustment of mix designs.

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How to Get Started in the Sealcoating Business

Entrepreneurship is engrained in the psyche of most Americans. A stage comes in the life of hard working people when they feel compelled to have the freedom to call the shots, be their own boss and control the destiny of the company and people around them. They want to so called “take the plunge” and make a big splash, and with the proper planning and execution they have a good chance of achieving the American Dream. In doing so, however, they must also keep in mind that 85% of businesses fail in the first year. There are a myriad of reasons and factors for failure, but we will concentrate on success and how to give yourself the best chance at having a successful business.

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A Contractor’s Letter to Customers Regarding Refined Coal Tar Sealers

If you use refined coal tar sealers and have recently received resistance from new or existing customers regarding their safety, you may not have immediate answers to help you explain the industry position. In fact, some contractors have switched away from using RCT sealers all together under the pretense of being "green" because of recent articles and media hype.

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13 Pavement Defects and Failures You Should Know!

With all the snow and ice over the last week on the east coast I thought it would be an appropriate time to look at some of the identifiable ways asphalt is adversely affected by weather – and other conditions. After all, correctly identifying pavement problems and their causes is at the heart of our business. Below we have identified and pictured 13 specific distresses/failures any pavement contractor should be able to identify.

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How Strategy Can Impact Your Position in the Economic Recovery

It’s been a tough few years for almost everyone in business. Those who have made it through this last downturn could be in a position to benefit from the recovery that seems to loom somewhere in the near future. The question is “how” do I capitalize on the upturn and are there opportunities for me to “reposition” or “redefine” my business.

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Girish Dubey - A Rising STAR

STAR Specialty Technology & Research, Inc. is a major manufacturer of pavement sealcoatings with a comprehensive line of performance-driven, pavement maintenance products. STAR’s flagship sealcoatings STARSEAL, STARSEALSUPREME and STAR MICRO-PAVE, have been the benchmark standard of the industry for years.

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For media inquiries or to request
a press release please contact:
Girish Dubey - 1-800-759-1912