Double-Duty Tool Joint Compound


MOLYSLIP COPASLIP TJC is a high performance lead and zinc free tool joint compound based on highly refined low sulphur, low pour point mineral oil thickened with a complex soap. The product contains both copper flake and graphite as solid lubricants coupled with high levels of corrosion inhibitors, anti-oxidant and anti-wear additives that make it particularly suitable for use under the most aggressive conditions in corrosive wet/humid, dirty or chemical environments where a high degree of water washout resistance is required.

MOLYSLIP COPASLIP TJC has excellent lubricating and anti-wear properties to reduce friction during assembly preventing ‘pick-up’, galling and seizure facilitating easier breakout for routine maintenance. The has been formulated to exceed the requirements of *API RP 5A3 / ISO 137678:2010

MOLYSLIP COPASLIP TJC is effective over a wide temperature range and is specifically designed to prevent seizure of threaded connections and ‘cold welding’ of rotary shoulder/drill collar/tool joint connections on oilfield equipment such as drill strings, casings, production tools and tubing etc. The specially formulated blend of additives provides enhanced adhesion to cold/wet tooling and a high resistance to wash off whilst being thermally stable making it suitable for use in applications where high temperatures are encountered.

API RP 5A3/ISO13678:2010 – “Petroleum and natural gas industries-evaluation and testing of thread compounds for use with casing, tubing, line pipe and drill stem elements”.


  • Low sulphur content
  • Brushable at low temperature (down to -18°C)
  • Excellent load carrying and anti-wear properties
  • Allows consistent joint make-up
  • Highly effective protection against corrosion
  • Outstanding resistance to water washout
  • Can be applied to cold, damp equipment
  • Effective over a wide temperature range (-20°C to +160°C)


Available in 20kg pails