What is a “wet film gauge” used for in spray-applied fireproofing?

The use of a wet film gauge in spray-applied fireproofing is specifically intended to measure the thickness of newly applied material before it dries. This tool is essential for ensuring that the application meets the specified thickness requirements necessary for effective fire protection.

When spray-applied fireproofing is applied, it is critical to achieve a certain thickness to ensure its performance in fire resistance. A wet film gauge allows inspectors and applicators to quickly assess whether the applied layer is adequate while the material is still in its uncured state. This immediate measurement capability helps in making any necessary adjustments prior to the material drying, thereby ensuring compliance with design and safety standards for fireproofing systems.

Proper use of the wet film gauge is a best practice in maintaining the quality and effectiveness of fireproofing installations, as insufficient thickness can compromise the fire-resistant properties of the material.