Survives Boiling ( pH 14) cleaning for hours
Survives extended Temperatures of -50 degF to
Is readable after extensive abrasion created by
The label shown
below is 15mm dia and is placed in a 1.6mm deep pocket
Here shown below is the same Label after Alkali cleaning in pH
14 ( 4 hours) Followed in Acid pH 4 (4 hours)
and sand blasted till it
The foggy Label above was then "wet " with appropriate
refractive index liquid see result below.
The Alkali /
Acid / Abraded Label scans well .