How does DPHP's performance compare to DINP and DIDP in high-temperature PVC?

How does DPHP's performance compare to DINP and DIDP in high-temperature PVC?
DPHP is one of the high-molecular-weight phthalates—alongside DINP and DIDP—that overcome DOP's limitations in fogging, heat stability, oil and water resistance. Its key selling points are low volatility, balanced low- and high-temperature flexibility, good resistance to migration and soapy-water extraction, and excellent UV stability for outdoor use. DPHP's standout feature is low fogging, which makes it preferred for automotive interiors where windshield haze is a concern. Typical specifications include APHA color below 25 and density around 0.958–0.968 g/cm³. EU safety assessments have cleared DINP, DIDP, and DPHP as safe for humans and the environment in approved applications, reinforcing their acceptance in regulated end-uses.