For 0.8 mm intensity you should go to the "C" strip.
It's value is approximately 1/3 of the "A" strip so you should get just under 0.3 mm
Some shops may still wish to use the "A" strip for since it is just barely over the 0.6 mm recommended tolerance. If you must comply with SAE or other aerospace specifications then you don't have a choice. You would have to use the "C" strip.
Thickness of strips: A=0.051", N=0.032" and C=0.094".
Thickness of strips: A= (1.27-1.32 mm). N=(0.76-0.81 mm), C=(2.36-2.41 mm)
