Do steel elements have to be cleaned? What if they’ve been exposed to the elements for a period of time?
Steel elements should be cleaned in accordance with any applicable standard before erection on site. Once erected the steel may be exposed to the elements for a period of time in which some rust is likely to form on its surface. Generally all steel surfaces to be sprayed should be clean and free from heavy rust, mill scale, oil and grease. Light rust will not affect the stickability of the fire spray.
