Surface preparation zinc hot dip galvanized coatings before painting
Instytut Badawczy Dróg i Mostów, Warszawa
The durability of duplex system (with hot dip galvanized coating) is described. The main attention is put on the adhesion between paint coatings and zinc surface. Zinc surface preparation methods before paint application are described taking into account standard's requirements and the results of the own investigations.
Keywords: Hot dip galvanized zinc coatings, anticorrosion protection, surface preparation, duplex systems
Repairs of pipeline corrosion defects by 3XE method
ANTICOR PPH, Wieliczka
Local defects in pipelines were discussed with special attention to corrosion defects. Repairs of such defects were presented in compliance with ISO standard specifications. One type of repair was shown in which a composite coating is applied. Kevlar tape constitutes the structural material of this coating. The repair is preceded by calculations in compliance with ISO standard which are performed by a computer program. Data concerning the type of the defect, structural and material data of the pipeline, material transported by the pipeline and its internal pressure are entered into the program. The program calculates, among other things, the number and length of coating's layers .
Keywords: pipelines, corrosion, anticorrosion protection, 3XE method, repair of corrosion defects, composites, aramides, Kevlar, epoxy resins
Ochrona przed korozją w praktyce - The impact of the technology and products used on the cost, durability and environmental friendliness of the protective coating formed
Instytut Badawczy Dróg i Mostów
The most commonly used technologies for corrosion protection of large-scale steel structures are reviewed in their aspects of environmental friendliness, application difficulties, durability and costs.
Keywords: corrosion protection, anticorrosive paints, anticorrosive coatings durability
Ochrona przed korozją w praktyce - The history and future of paint
Teknos Oliva Sp. z o.o., Gdynia
Teknos Sp. z o.o., Warszawa
A short history of paint coating development from ancient times up to the present is presented. The history of the paint industry since its dawn is presented, including a short review of the emergence and development of binders used in present-day pro-ducts.
Keywords: paints, binders, pigments, rock drawings, anticorrosive painting