Distributors  |  Automotive MotorcycleIndustrial  |  Racing  |  Marine Home  |  About UsContact
Home Page
Royal Purple Products
  Information Videos
  Street Application FAQs
  Racing FAQs
  Purple Ice® FAQs
  About Us
  Contact Us
RP Industrial Range
Show Industrial products
RP's Articles of Interest
RP's Performance Advantages
Royal Purple's proprietary additive technologies, such as Synerlec, enable its products to outperform leading synthetic and conventional lubricants
Learn More
Find RP near you

Hi-Therm 707


Hy-Therm™ 707 is a synthetic, heat transfer fluid that is more efficient than mineral oil based fluids. Its thermal conductivity (0.121 BTU / hr ft °F at 400 °F) is 50 to 100 percent greater than many widely used heat transfer fluids. This means that heat goes in and comes out of Hy-Therm™ 707 much more quickly. A pound of Hy-Therm™ 707 can hold 30+ percent more heat with a specific heat of 0.665 BTU / lb °F at 400 °F.
Hy-Therm™ 707 can safely be used in open systems up to 400 °F and in closed systems under inert gas at 700 °F. Fluid life and system cleanliness can greatly be enhanced when Hy-Therm™ 707 is used with inert gas (nitrogen, etc.) blanketing. Its low temperature fluidity eliminates the need to drain fluid during cold weather shutdowns, a common problem with many heat transfer fluids.

Systems using Hy-Therm™ 707 are both safer and cleaner. Hy-Therm™ 707 has a higher flash as up to 25 percent more heat is removed than comparable petroleum heat transfer oils. Systems remain cleaner because Hy-Therm™ 707 minimizes carbon deposits, which ensures superior heat transfer efficiency.

Find out more: See the PS & MSDS (Product Sheets and Material Safety Data Sheets)

RP Product Range
  Special/ New Products
Supercheap logo

Merchandise Shop
Royal Purple Gear
Royal Purple offers a variety of high quality apparel and merchandise including great shirts, T-shirts, caps, bags, key rings etc.
Show Me
Hot Rod magazine Endorses Royal Purple® Lubricants
"It occurred to us that we've yet to run a test with Royal Purple® oil that didn't result in a power gain—it might be a marginal gain (as with our little Acura Integra), but it's a gain.
Learn More