https://www.avient.com/sites/default/files/2022-08/Environmental Stress Cracking Resistance _ESCR_ Design Guide %281%29.pdf
If the holes are not for structural design, they
can be placed closer together and should all be
placed two times the nominal wall thickness (W)
apart from each other and from an outside or
inside wall.
https://www.avient.com/resources/safety-data-sheets?page=2671
UV RHINO BLUE C
DB2424 Gray#2 (G750 Type)
DARK GRAY LID
https://www.avient.com/resources/safety-data-sheets?page=3405
GEON M5240 GRAY
149B SHALE N NG-02 UV
TUNGSTEN GRAY
https://www.avient.com/resources/safety-data-sheets?page=3955
A27183 PPC UV 12237
ABS DOLPHIN GRAY SUB
GRAY TINT CC
https://www.avient.com/resources/safety-data-sheets?page=6865
A48 PURPLE UV 302-125
1Y1A LIGHT SPACE GRAY ADX5017
1Y1A LIGHT SPACE GRAY 2000
https://www.avient.com/resources/safety-data-sheets?page=5956
Geon(TM) DB5512 MATTE MEDIUM GRAY FR NP
UV UNIQUE BROWN ABS
DARK GRAY METALLIC
https://www.avient.com/resources/safety-data-sheets?page=2688
BLUE-GRAY 536U
KRESTMARK UV IVORY
RIGLED AIR GRAY
https://www.avient.com/resources/safety-data-sheets?page=4788
SILCOGUM GRAY
SILCOPAS GRAY
Geon(TM) PX-C-097A WT HI DURO UV PVCWHT909
https://www.avient.com/resources/safety-data-sheets?page=819
UV GREY PE/PP
GRAY
COOL GRAY 11C
https://www.avient.com/resources/safety-data-sheets?page=1901
UV GREYSTONE
WARM GRAY 6C
GREYHOUND GRAY