TY - JOUR AU - Савенко, В І PY - 2019 TI - ECONOMIC EXPEDIENCY OF EXTENSION OF TERMS OF USING OF METAL CONSTRUC- TIONS, MACHINES AND PRODUCTS BY PROTECTION FROM COROSSION WITH ENVIRO- MENTALLY FRIENDLY PRODUCTS (CONTRRUST) JF - Building production; No 65 (2019): Building Production DO - 10.36750/2524-2555.65.23-31 KW - N2 - Corrosion leads to billions of losses each year, consisting in putting down articles and machines made of metal, as well as the costs for the protection and restoration of metal products. Investigation of cor rosion provides a basis to assert that the corrosion protection — is primarily a correct surface preparation and then a layer of high quality sealants, paints or other types of coverage. Environmentally friendly plant substance, patented and tested, with the name "CONTRRUST" is an effecti ve means of blocking sources of corrosion (rust) and surface preparation for protective coatings UR - http://ndibv-building.com.ua/index.php/Building/article/view/30