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There are several methods for pre-treating the surface before powder coating. The method we use depends on the size of the product, the level of contamination, the level of potential corrosion of the finished product and the volume of production. The priority of all requirements on the surface is to be absolutely oil and dust free. This can be achieved with simple scouring or enhanced with phosphating.

If the quality requirements of the coated surface are higher or the customers have higher expectations, the coating of the surfaces with a phosphate layer, even for indoor purposes, is highly recommended. This layer enhances the corrosion resistance (advantage in humidity or against scratches) and also the adhesion of paint.zsirtalanito

If the phosphate layer is 0,2-0,5 g/m², it counts as a thin phosphate layer, which enhances the adhesion, if the layer is thicker than that (up to 0,8-1,0 g/m²) we call it as a thick phosphate layer, which enhances first of all the corrosion resistance. According to the specific needs and circumstances it is possible to do the scouring and the phosphating separately (for very contaminated surfaces pre-scouring is possible) or in one step.

We use high pressure steam cleaner, which allows to do the scouring and the phosphating in one step. The pretreatment with the steam cleaner is done in a special room, which is suitable for individual pieces and for series as well. The thickness of the phosphate layer is in proportion with the treatment time, which makes the adjusting of the layer thickness simple. That makes the durability of the painted pieces significantly longer.

Environment is our issue, that is why we are using chemical recycling room, collecting funnel, filter systems and tanks. Our waste water is cleaned by an automatic equipment.

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