Products Details

TC Special

(Thread Compound for Drill Pipe, Tool Joints & Drill Collars And Other Rotary Shouldered Connections) TC Special is a multiple duty drill pipe, drill collar and tool joint compound that contains Specialty Solid Lubricants such as Copper etc. It is a Lead and Graphite free Solids based product to ensure leak proof seal even in extreme conditions. It is further fortified with anti-corrosive, extreme pressure, anti-wear and anti-oxidants for protection and prevention of excessive circumferential make up in hostile drilling environments.


For use on tool joints, drill pipe, drill collar and other rotary shouldered connections. Recommended when downhole conditions are severe and the probability of makeup while drilling is anticipated such as high angle holes, horizontal drilling applications, geothermal wells, problem holes involving high temperatures etc.


-    Lead – Free
-    Conforms to API RP 7A1
-    Prevents high stress in drill pipe connections that shortens their useful life.


20 Kg Pail, 25 Kg Drum

Owing to evolving packaging solutions, user is requested to kindly check the availability of a specific pack size prior to standardization.

Appearance Smooth
Base Lithium / Petroleum
Colour Copper
Specific Gravity 1.56 ± 0.1
Flash Point (Base Oil) 230°C (min)
Drop Point 190°C (min)
Consistency # 1 – 2
Worked Penetration 290 – 310
Water Resistance Excellent
Temperature Range -20°C to 160°C (Arctic Grade Available on Request)
Brushability upto -12°C
4 Ball Weld Load 620 Kg (min)

Download TDS

Material Safety Information required for safe usage of this product may not be included in this product bulletin and may be sought by contacting MOSIL. Users are advised to go through the Material Safety Data Sheet (MSDS) of this product prior to application / usage of this product.

*All statements and information contained in this document are based on the laboratory testing and user experience on actual applications. Owing to the exhaustive possibility of application for which this product may be used and the variety of equipments, performance parameters, environmental conditions and unpredictable human factors, we strongly recommend that this product be tested on the actual application prior to its standardization. All information contained herewith is offered in good faith but without any expressed or implied warranty. This Product Bulletin may already have been revised considering the availability of raw components, legislation, user experience & expectations and enhancement of knowledge of the development team of MOSIL. Users are requested to kindly seek the latest version of this product bulletin by contacting MOSIL. Information provided in this Product Bulletin is based on the generalised expectations and requirements of users. Additional information for this product may also be sought by contacting MOSIL.