CBLF - HT
Non-Lead/Non-Zinc Thread Compound for Rotary Shouldered Connections
300 - 320 (ASTM D 217)
1.1 (per API RP 7A1)*
Copper flake, synthetic and
amorphous graphite, and other
CBLF - HT has been developed as an answer to the environmental restrictions and
exposure concerns associated with the use of lead and zinc drill collar/tool joint thread
compounds. It contains copper flake combined with a proprietary blend of amorphous
and synthetic graphites, along with oxidation and H2S inhibitors, in a high temperature
base grease. In addition to the galling and seizing protection provided by the solids, it
also contains a soluble extreme pressure package that is surface active (adheres to
metal surfaces) and helps to provide the load carrying capability required by the high
bearing stresses present in rotary shouldered connections. CBLF - HT has a torque
correction factor of 1.1 (10% additional torque required) which will provide additional
resistance to down-hole make-up as compared to lead or zinc compounds. It applies
easily in a wide range of temperatures and conditions, is resistant to wash-out and will
not harden or bleed excessively in storage.
RECOMMENDED FOR all drilling applications (rotary-shouldered connections), including high
temperature environments. Also effective for use on open gear jackup legs.
*API RP 7A1: “Recommended Practice for Testing of Thread Compound for Rotary Shouldered Connections”
NOTE: Due to operation and equipment variables, this value may require adjustment based on field experience.
A MATERIAL SAFETY DATA SHEET IS AVAILABLE FROM THE MANUFACTURER.
DO NOT USE ON OXYGEN LINES OR IN OXYGEN ENRICHED ATMOSPHERES.