Certified Plastic Shims are available in the following thicknesses (all thicknesses are approximate):
Code | Approximate Thickness | Color | Accuracy |
CS1 | 25 μm (1 mil) | Orange | ±2 μm (±0.08 mil) |
CS2 | 50 μm (2 mil) | Red | ±2 μm (±0.08 mil) |
CS3 | 75 μm (3 mil) | Green | ±2 μm (±0.08 mil) |
CS5 | 125 μm (5 mil) | Blue | ±2 μm (±0.08 mil) |
CS10 | 250 μm (10 mil) | Brown | ±2 μm (±0.08 mil) |
CS20 | 500 μm (20 mil) | Yellow | ±2 μm (±0.08 mil) |
CS40 | 1000 μm (40 mil) | White | ±2 μm (±0.08 mil) |
CS60 | 1500 μm (60 mil) | Black | ±2 μm (±0.08 mil) |
CSS | Complete set of 8 | ±2 μm (±0.08 mil) |
Certified Plastic Shims (foils) provide an economical alternative to coated metal plates. They have a reduced accuracy of ±2 µm (±0.08 mil). A coating thickness gage measures shim thickness when this shim is placed over a smooth metal surface (zero plate).
Non-Certified Plastic Shims (foils) provide a quick operational check of the instrument and they allow the user to perform practice measurements when placed over metal.
Alternatively, they can be placed over an uncoated metal substrate. They are not suitable for use with magnetic pull-off gages.
Shims overview: