Strain Gage Installation: Protective Coatings
engineering fundamentals Strain Gage Installation:
Protective Coatings

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Protective Coatings

Protective Coatings are mainly used to protect the strain gage against moisture and other contaminants which may affect gage stability. They are recommended for applications in the field and for long term measurements.
- Preparation: Clean the gaging area.
- Applying Coating: Apply silicon rubber, polyurethane, or acrylic lacquer to the gaging area. If further protection is needed, PTFE film and neoprene rubber sheets can be used to cover both gages and nearby leadwires.

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