Sprayed, fire-resistive material applied

Standard Practices for Simulated Service Testing for Corrosion of Metallic Containment Materials for Use With Heat-Transfer Fluids in Solar Heating and Cooling Systems Standard Test Method for Corrosion of Steel by Sprayed Fire-Resistive Material (SFRM) Applied to Structural Members... 

For shell-and-tube heat exchangers, limited fire protection may be provided during fire exposure by the liquid in the shell that provides some internal cooling for the shell wall. However, if a spill fire exposure exists and the shell side liquid has low heat capacity, then either water spray or fire resistive material should be applied to the surface of the exchanger itself. 

Cementitious mixtures—As defined by UL in "Spray Applied Fire Resistive Materials (SFRM)", cementitious mixtures are binders, aggregates and fibers mixed with water to form a slurry conveyed through a hose to a nozzle where compressed air... 

Mastics are sprayed on a substrate in one or more coats, depending on the desired degree of fire resistance. The final coat of all fireproofing mastics should be rolled or brushed to provide a smooth surface finish. The material should be applied with a sufficient number of coats to prevent running or slumping and sufficient drying time should be allowed between coats. Mastics may also be hand-troweled, if permitted in the manufacturer s specifications. 

An extremely fire-resistant coating material designed for spray applications to onshore and offshore oil and gas facilities has been introduced by Hempel s Marine Paints. The product, called ContraFlam 3810, is easy to apply and is particularly well-suited to the protection of structural steel work, walls, and floors. Another coating of a surface hardener/weather barrier material, such as Contraflam Topclad 3811, can then be applied followed by a color coat. 

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