https://www.avient.com/sites/default/files/2022-08/Environmental Stress Cracking Resistance _ESCR_ Design Guide %281%29.pdf
Wall Thickness (mm)
C
o
o
li
n
g
T
im
e
(
S
e
c
)
40
35
30
25
20
15
10
5
0
0 1 2 3 4
ABS
PC
Nylon 6/6
FIGURE 1 - Wall thickness vs. cooling
time of various plastics
FIGURE 2 - Designing for
wall thickness changes
FIGURE 3 - Internal and external
radius guidelines
FIGURE 4 - Coring for tight radius design
ESCR Design Guide 2
CONTOUR
Where possible, contouring the products’
exterior form, as shown in Figure 5, can help to
eliminate pooling of fluids.
