An industrial coating is a paint or coating defined by its protective, rather than its aesthetic properties, although it can provide both. It provides a barrier from the steelwork to its corrosive surroundings.
The most common use of industrial coatings is for corrosion control of steel structures such as offshore platforms, bridges and underground pipelines. Other functions include intumescent coatings for fire resistance. The most common polymers used in industrial coatings are polyurethane and epoxy.
Here at DF Coatings we aim to work with our customers to find out the full requirements and specification of the job before we carefully plan and put together the best coating system task specific.
We can offer an extensive range of coating’s which we can apply:
REFINERY COOLING SEA WATER INTAKE PUMP
This large split case pump had been refurbished before with a nickle hard alloy that was bolted onto the landings of the impeller. Cavitation had erroded the landings and it needed being rebuilt with a suitable cavitation resistant material.
The pump casing landing areas were first UHP blasted and then abrasive blasted, to remove all loose and damaged material at the same time as removing any salt contamination. After abrasive blasting the landings were again UHP blasted to ensure the salt contamination was completely removed. Once dry the landings were filled with a ceramic filled epoxy resin to replace the lost material. This was then ground to provide a smoother surface and then coated with a PU/Ceramic filled epoxy composite material designed to reduce the effects of cavitation. Two coats were applied and then a former was used to ensure that the surfaces were shaped to the correct alignment for the impellers.
RESERVOIR DIFFUSER RELINING
The diffusers at this dam required relining after an inspection found the original coating had been removed and there were areas showing cavitation damage.
The access to these diffusers required roped access to carry out the abrasive blasting preparation and teh coating of the diffusers. After grit blasting with garnet the diffusers were coated with a ceramic filled epoxy resin to provide a smooth overall finish and assist the fluid flow over the vanes of the diffuesers. This was followed by application on the cavitation damaged areas of using a hybrid PU/Epoxy pase to fill the pitting carused by the cavitation and then followed by two coats of an hybrid PU/Epoxy liquid coating to provide additional protection and smoothness over the repair.
We are Operations Integrity Management System (OIMS) approved EU Number; 403046. DF Coatings Ltd are working to ISO 9001/2008 regulations