Recently, a lot of fakes have appeared on the building materials market, and everything is faked from putty to drywall. The distinguishing characteristics of the original product are the appearance of the packaging, the number of the batch indicated on the packaging and the holographic sign confirming the authenticity of the product. But even understanding all the intricacies of determining the authenticity of the material, it is advisable to contact a reliable supplier. It is desirable that a person selling building materials has already proven himself as a reliable partner. And of course it is impossible to save on high -quality materials, this can lead to much greater costs later.