The Tg of TotalBoat Polyester Resin is 188.834°F / 87.13°C.
IMPORTANT! The Tg (Glass Transition Temperature) should not be confused with the HDT (Heat Deflection Temperature). The HDT indicates how a material performs under stress at higher temperatures (stiffness). The HDT is a more defined and accurate high temperature for most applications. The Tg is not as much of a defined value, but it is when a material changes state from a rigid, solid form to a pliable, rubbery material. This number is generally used to define a polymer's other mechanical properties, rather than being considered a mechanical property of the polymer.