Fire protection of steel floor trays

The application technique of Firespray^®

Firespray ^® is a spray-on product. The spraying technique, also known as flocking, consists in applying Firespray^® fibres under pressure, using a special machine. The thickness of the sprayed layer will be defined according to the desired fire resistance rating. The spraying machine comprises a feed hopper, a carding device, a blowing device (fan, turbine or blower), a hose for conveying the mixture to be sprayed. The Firespray ^® mixture is then applied with a spray gun. The product is placed in the machine, then fed into the spray gun by means of compressed air. Water-fed nozzles are placed around the hose outlet to wet the product before it is sprayed onto the substrate. Firespray^® does not require prior application of a bonding agent. The coating will be finished with Projiso Fixo Dur^® or Sidairless^®. Projiso Fixo Dur^® is a spray-on product that can penetrate the fibrous coating to a depth of up to 15 mm. The Sidairless^® coating is applied using pumps for spray-applied coatings. The product can be churned in a mixing turbine.