Rache Complex42™

Performance additive for drilling and tunnelling.


Diamond tool performance additive for hard rock drilling in mining, geotechnical and tunnelling operations. Huge gains in drilling speed. Fewer drill string jams. Increased diamond tool and machine life.

Product Technical Benefits
  • Low-cost concentrate — used at 2-5% dilution.
  • Increased ROP (Rate of Penetration), up to 6x. Approximately 40% more efficient than Australia’s leading MUD lubricant.
  • Increased torque at drilling head.
  • Preserves tool cutting edges, increasing drill bit life.
  • Fewer drill string excursions.
  • Reduced wear on the drill string by lubricating the drill bit, bearings, mud pump & drill pipe.
  • Reduced machine stress prolongs engine life.
  • Biodegradable
Product Applications
  • Mineshaft drilling.
  • Tunnelling and boring.
  • Wells, Geotech and pilings.
Drilling Efficiency and Cost

Drilling costs are mainly driven by ROP and bit life. The key factors in drill bit wear are the bit type, the bit operating parameters and the characteristics of the substrate being drilled. Complex 42™ reduces drill bit wear in all substrates, providing significant downstream performance improvements throughout the whole drilling process.

Complex 42™ increases milling efficiency via the Rehbinder Effect which softens fresh ore surfaces as it is broken up. Complex 42™ is recycled many times with the mill water before it has to be topped up.

How Complex 42™ Works
  • Diamond Preservation
    Complex 42™ is formulated to reduce diamond wear. In the presence of heat and pressure, Complex 42™ not only works as a lubricant but forms a protective coating around the tool. In the example of a drill string, Complex 42™ has been demonstrated to reduce friction both on the cutting head and on the well wall, reducing fuel costs and wear and tear on the equipment.
  • Increased cutting / grinding speed
    Complex 42™ works via a physical property known as the Rehbinder Effect to significantly increase cutting and drilling efficiency through softening of the rock surface allowing increased penetration. The added benefit of diamond preservation means greater cutting efficiency over the life of the tool because the diamonds stay sharper for longer.
Pack Sizes
  • 200L (53GAL); 1000L (264GAL)

Eye / Face: Wear splash-proof goggles.
Hands: Wear PVC or rubber gloves.
Body: When using large quantities or where heavy contamination is likely, wear coveralls. Respiratory Where an inhalation risk exists, wear a Type A (Organic vapour) respirator. Do not take it internally.
Avoid spraying in windy conditions.
Wash hands thoroughly.

First Aid

Eye: If in eyes, hold eyelids apart and flush continuously with running water. Continue flushing until advised to stop by a Poisons Information Centre, a doctor, or for at least 15 minutes. Inhalation: If inhaled, remove from contaminated area. Apply artificial respiration if not breathing.

Skin: If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water. Continue flushing with water until advised to stop by a Poisons Information Centre or a doctor.
Ingestion: If swallowed, do not induce vomiting.

For advice, immediately contact a doctor, ambulance, or, a Poison Information Centre: Australia – 13 11 26 (Australia Wide)
USA – American Association of Poison Control Centres 1-800-222-1222
Canadian Poison Centres – Ontario (24/7): Telephone: 416-813-5900; Toll free: 1-800-268- 9017
UK – England and Wales: NHS 111 – dial 111; Scotland: NHS 24 – dial 111; Republic of Ireland: 01 809 2166


Spillage – Take up mechanically or with absorbent material such as sand, earth or vermiculite.



Shelf Life and Storage Guidelines

Best within 3 years of manufacture date.
Keep container tightly sealed, in a well-ventilated place, at 36 – 1000 Fahrenheit of 2 – 380 Celsius

Technical Data
  • Specific Gravity: 0.97
  • Colour: Clear colourless to light straw yellow liquid
  • Weight: 200L (53G) = 56.5Kg (24Lb) Including pallet; 1000L = 1029kg
  • VOCs: ˂343g/L (using EPA method 24)
Country of Manufacture


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