Explain the term 'rebound' in spray-applied fireproofing.

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Multiple Choice

Explain the term 'rebound' in spray-applied fireproofing.

Rebound is the portion of sprayed fireproofing that doesn’t stay on the wall or steel surface and instead bounces off or falls away during application. This quantity is used as a surface roughness metric because the surface profile directly affects how much material will adhere versus rebound. A rougher or more irregular surface tends to cause more droplets to miss and rebound, so measuring rebound provides a practical indication of surface roughness and helps guide surface prep and spray parameters to achieve the desired thickness. In practice, rebound data help estimate true installed thickness and ensure consistency across areas.

Rebound is the portion of sprayed fireproofing that doesn’t stay on the wall or steel surface and instead bounces off or falls away during application. This quantity is used as a surface roughness metric because the surface profile directly affects how much material will adhere versus rebound. A rougher or more irregular surface tends to cause more droplets to miss and rebound, so measuring rebound provides a practical indication of surface roughness and helps guide surface prep and spray parameters to achieve the desired thickness. In practice, rebound data help estimate true installed thickness and ensure consistency across areas.

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