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High Performance Machine Coolant

The "BIG HOSS" as some refer to it.  HOSS 80 EXT is a microsoluble coolant that is an excellent choice for machinists and processes that desire more oil in their product than other ValCOOL products. Our chlorine and boron free CNC machining coolant is fortified with some of the latest polymeric esters and corrosion inhibitors. Often times, on a usage cost basis, this product tends to be the least expensive choice of product in the ValCOOL offering.

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hoss 80 ext industrial equipment
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1 (800) 244-9004

Features & Benefits


  • Low in-use cost
  • Zero to no foam with high pressure


  • Excellent corrosion protection
  • Works on all alloys
  • Extremely worker friendly
  • “Clean” chemical footprint
  • Excellent bio-resistance


AppearanceClear Dark Amber
pH (neat)9.70
pH (5%)9.30
OdorMild Industrial
Solubility100% in Water
Density lbs/gal8.30
Flash pointN/A
RI Factor1.2

Questions About Our Products?
Contact Our Sales Engineers.

Our Sales Engineers are widely regarded as the most competent and responsive in the business: they know the material, the workpiece, the tools and the fluids that you need to make it right. Together with our Field Application Engineers, they’re available with on-site assistance and technical support when you need it.

Applications & Usage

The main use for HOSS 80 EXT is machining in CNC machines but runs equally as well in manual machines. The product has technology that allows the product to be highly beneficial for high pressure applications where foam can be an issue. Additionally, companies have found success with the use of HOSS 80 EXT in certain forming processes.

Concentrations for machining applications vary but a typical starting concentration is 5% with a maximum concentration normally found around 8%. 

Health & Safety

See the most recent SDS which is available directly from ValCOOL, your local salesman, or an authorized distributor. ValCOOL uses only raw materials not listed as carcinogenic by IRAC. 

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Contact Us Today:

1 (800) 244-9004