What is the recommended method used for bond strength testing if the product has a bond strength over 1,146 psf?

The recommended method for bond strength testing when the product has a bond strength exceeding 1,146 psf is through alternative testing methods. When bond strength is significantly high, conventional testing methods such as visual inspections or standard probing may not provide sufficient accuracy or detail in assessing the performance and integrity of the fireproofing application. Alternative testing methods can include more precise and scientifically validated procedures specifically designed to handle high bond strengths, ensuring that they accurately reflect the product's effectiveness in maintaining fire resistance.

Using alternative methods allows inspectors to gather quantifiable data that can inform quality assurance and compliance with safety standards. In high-performance applications, the nuances of adherence to substrates and the overall installation quality can only be captured through these advanced testing protocols. This approach not only aligns with industry best practices but also meets regulatory standards that demand effective verification of fireproofing materials' performance in critical applications.