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Tensile Bond Strength Variance of Thermally Sprayed Coatings with Respect to Adhesive Type

From IMR Test Labs
 

 

A Round Robin study involving 19 coating suppliers and independent laboratories was conducted on tensile testing of thermally sprayed coatings to determine the accuracy and consistency of the tensile data among the participating labs and within a lab. One coating system (NiCrAl) and two adhesives types (film vs. liquid epoxy) were used. The results showed the average tensile strengths for the coating system using the liquid epoxy systems (EC2086/EC2214) were consistently higher than the average values which resulted using the film epoxy system (FM1000_. However, less scatter in the results were observed when the FM1000 film epoxy was used.

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