<1> Exposed to High Humidity, High
Traffic, or Salt Air? If a
polycarbonate cross-section is
exposed to conditions of high
humidity, high traffic, or salt air,
proceed to <2>. Otherwise,
proceed to <3>.
<2> Consider Hard Coating. Hard
to High Humidity, High
coating the surface of
polycarbonate can protect it from
Traffic, or Salt Air?
abrasion and contaminant
penetration. Proceed to <3>.
<3> Exposed to Extreme
Temperatures? If a polycarbonate
cross-section is exposed to
temperature differentials in excess
of 70F then proceed to <4>.
Otherwise, return to Figure 30.
<4> Is Thickness Greater Than 5/8"?
For thicknesses of polycarbonate
greater than 5/8 inch exposed to
extreme temperatures, proceed to
<5>. Otherwise, return to Figure
<5> Consider Air-Gap System.
Extreme temperature differentials
and large thicknesses can produce
bending stresses in polycarbonate
that will lead to delamination. An
air-gap will reduce the temperature
differential through the
polycarbonate material. Return to
Process Chart and Description:
Polycarbonate Environmental Analysis Procedure
Laminated Glass Environmental Analysis Procedure. This
procedure provides guidance for cold temperature applications of
laminated glass. Figure 33 presents the process chart and
description for the laminated glass environmental analysis