Xceltherm 445FP from Radco has a flashpoint of 445°F (230°C).

Xceltherm 445FP has a flashpoint of 445°F (230°C) and a bulk fluid operating range of 5 to 550°F (15 to 288°C). It can be used to expand the operating boundaries in systems where the bulk fluid temperature is limited by flashpoint. The liquid-phase fluid from Radco Industries Inc. is suitable for use in systems striving for compliance to U.S. Coast Guard marine flashpoint regulations.

October 2000, RS# 202