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Protective Coatings

Strain gage performance is easily degraded by the effects of moisture, chemical attack, or mechanical damage. Micro-Measurements coating compounds are formulated specifically for use in protecting strain gage installations from damaging environmental conditions. The range of materials is adequate for handling the majority of gage protection requirements. Refer to the Coatings Selection Guide.
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SeriesDatasheetDescription
General-purpose coating in laboratory and field. Elevated-temperture use.
Thicker than 3140 RTV. Good cable anchor.
Butyl rubber patch. No curing required.
Pre-softened wax with paste consistency. Similar to W1.
Solvent-thinned (toluene) synthetic resin. Often used as a precoat for Gagekote #5, and Epoxylite #813. Resistant to moisture and offers a wide operating temperature range. Provides limited mechanical protection. Convenient to use.
Moisture protection for ceramic cement installations.
Two component polysulfide. Good mechanical protection and chemical resistance.
Fast drying acrylic of used for leadwire anchoring in transducers.
Normally used in transducer gaging. Highly resistant to moisture and chemical attack. Elevated-temperature curing. Hard coating with excellent chemical, electrical and mechanical resistance. 
Protective CoatingPlastic Bundle
Two-component, 100%-solids epoxy system for general purpose stress analysis. Transparent, medium viscosity. Cure time as low as six hours at +75°F (+24°C) may be used. Elevated-temperature postcure isrecommended for maximum stability, and/or tests above room temperature.   Highly resistant to moisture and most chemicals, particularly when postcured. For maximum elongation, bonding surface must be roughened. Cryogenic applications require very thin gluelines.Plastic Bundle
Similar to AE-10. Recommended for more critical applications, including transducer gaging. Elevated-temperature curing. Hard, water-resistant coating
A 100% solids adhesive used to fill irregular surfaces and anchor leadwires. Elevated temperature cure required. Good chemical and mechanical protection at elevated temperatures.
General-purpose laboratory coating.Aluminum,Steel,PCB
Secondary coating as vapor barrier.
Low reinforcement coating. Elevated temperature use.
General-pupose laboratory moisture barrier. Intrabridge wiring anchor and insulation.
Field applications where conditions are not ideal. No curing required.
Low reinforcement coating for commercial transducers.
Protective Coating
Best water barrier, but poor mechanical protection.