Viking CTP is a high-grade roofing coal tar pitch that is specially formulated to provide superior waterproofing and weathering characteristics. Derived from tar extracts from bituminous coal, Viking CTP is distilled and treated to produce a material with a unique molecular structure. It's tight aromatic molecular structure produces a natural resistance to the severe effects of moisture, temperature, and corrosive elements found in many environments. It meets or exceeds the requirements of ASTM D 450 Type I.