Impregnation As already mentioned for the product groups, mostly polymers are used for such impregnators, which on the one hand penetrate little bit into the surface when the substrate is absorbing, but also leave a thin film on the substrate. Such impregnators / sealers can be based on acrylic resin dispersions, thin poly methyl methacrylate resins (PMMA) or also epoxy resins. As long as there is a closed filmon the surface, there is also a protective effect. Unfortunately, mechanical impact can easily cause scratches on the floor. If water is added to the damaged/scratched area, water can penetrate and for a long term reaction the film-forming surface protection system can peel off. In the case of not diffusion open and film-forming systems, bubbles can also blow up if moisturewas trapped during impregnation. Risingmoisture can get to a problem. Plasticizer migration or black marks, lines, e.g. due to the friction of plastic or rubber tires on fork lift trucks, are also seen more often in film-forming protective systems than in products that are completely absorbed into the surface. The removal of such marks is usually only possible through mechanical use of e.g. abrasive cleaning pads or diamond cleaning pads if thesemarks are in the superficial area. Impregnation / sealant is only thin layer on top - can scratch or peel off. 55
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