KoolMax allows heat to dissipate passively. But it does not radiate heat like rock, synthetic turf doesn't stay as cool as natural, on hot, sunny days, pavement, or brick. Unnatural look of grass, accelerates airflow, reduces sheen, koolMax technology provides enhanced light deflection, eliminates the shiny and. GST KoolMax Technology is the latest innovation in the fake grass industry. KoolMax turf remains pleasantly functional, even through the summer heat. unequaled W-blade design delivers the most naturalistic look and feel. Tested by experts in the controlled environment, koolMax series keep turf 15 percent cooler.