DESCRIPTION
BESTOLIFE® C-55 is a lead-based thread compound for rock drill steel joints, couplings, and bits, formulated to withstand the stresses and temperatures of percussion rock drilling. C-55 will not melt or leave burnt residue to bind threads, and is suitable for all rotary drilling joints.

APPLICATIONS
Rock drill thread lubricant. Recommended for coal drilling, percussion rock drilling, blast hole drilling, all rotary joints, road construction, logging, mining, pneumatic drilling and track drills.

PRODUCT CHARACTERISTICS
Color: Black
Penetration: 295-310 (ASTM D 217)
Weight/Gallon: 19.6 pounds/gallon
Thickener: Lithium
Fluid Type: Petroleum
Dropping Point: ≥350°F (177°C) (ASTM D2265)
Flash Point: ≥392°F (200°C)
Service Rating: 500°F (260°C)
Friction Factor: 1.0 (relative API Modified)
Shelf Life: 4 years (unopened container)
Contains: Over 60% metallic lead and other nonmetallic additives