PDC
Coal-tar based · PDC → WD-2000 → CPR™
PDC — Pavement Dressing Conditioner — is the first rejuvenator we put down, and the oldest name in the class: a coal-tar rejuvenator/sealer in service on airfield and commercial pavement since the 1960s. The same chemistry class carried us to WD-2000, manufactured by Lone Star Specialties (formerly Reilly Industries) since 1994 — that line runs CI-5 → PS/R 07, the VOC-reduced reformulation, → WD-2000, the name carried forward after Lone Star's 2008 acquisition of Bitumen Supply — with TriTech as WD-2000's Master Distributor from 2015 to 2019. Today the traffic-grade slot belongs to CPR™ (Conditioning Pavement Rejuvenator) from Hydro-Labs. Three names from three makers, formulation tweaks along the way — but the same RT-12 coal-tar rejuvenator class underneath, with over 56 years of FAA testing history on airfield pavements.