What is the recommended rate of force during bond strength testing of SFRM?

The recommended rate of force during bond strength testing of Spray-Applied Fire-Resistive Material (SFRM) is set at 11 pounds per minute. This specific rate has been established to ensure that the testing process accurately reflects the material's ability to adhere to substrates under conditions that are representative of actual use scenarios.

Utilizing a consistent force rate is crucial for maintaining reliability and validity in test results, as it helps prevent variations that could skew the data. Testing at 11 pounds per minute allows for a controlled application of force that can effectively demonstrate the bond strength of the fireproofing material, ensuring that it meets the necessary performance and safety criteria. This value has been defined in industry standards to enhance the consistency of testing procedures across various projects and products, allowing for proper evaluation and comparison.