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PDR-4000 is a proprietary blend of fast-acting solvents designed for the removal of pipe dope and hydrocarbon residues from casing and workstring. Used as directed, PDR-4000 will remove pipe dope and assist in the removal of solids and particulate matter, including iron scale, which could severely affect well production if not removed prior to completion operations.

Typical Physical Properties

Appearance Blue
Odor Citrus, Pine
Specific Gravity @ 60°F 0.845
Density (lbs./gallon) 7.05
Flash Point 118°F (TCC)
pH N/A


  • PDR-4000 was specifically formulated to replace the more hazardous products commonly used in the past. PDR-4000 is safer to human health and easier to handle than aromatic solvents. Contains no known carcinogens or materials that produce chronic health effects. Does not contain chlorinated hydrocarbons, low flash point alcohols, benzene, toluene, or xylene, or any other aromatics. Contains no heavy metals, caustics, or alkaline materials and is rapidly biodegradable. No components are listed on SARA Title III, Section 302 Table.
  • Contains no harsh, abrasive or reactive constituents. Causes no surface damage to metals including steel, aluminum, iron, bronze, etc.
  • Application

    Please consult a RIG-CHEM Representative for an engineered recommendation.


    Improper handling of this product can be injurious to workers. Observe all safety precautions shown on the label and in the Material Safety Data Sheet.