Laserfiche WebLink
Recommended Approach <br /> Based on the needs of your tank,we recommend a design-build <br /> approach to take the uncertainty out of your rehabilitation and <br /> maintenance program by delivering a comprehensive, turn-key <br /> solution and a customized agreement, tailored to your specific needs. <br /> Protective Coatings <br /> Based on our inspection of your tank,we recommend a specific <br /> protective coating rehabilitation strategy for the exterior,wet interior, <br /> dry interior, and pit piping of your tank. <br /> � . E�terior: Given the age, adhesion, and overall condition of the <br /> existing exterior coating system,we recommend overcoating the <br /> � � exterior surface of the tank. <br /> �`�� � . This process includes preparing any corroded and/or failed <br /> r'•1 <br /> � ���V ' coating areas to the equivalent of a SSPGSP3 Power Tool Cleaning <br /> � ^ � condition. <br /> . �. �- , <br /> Non-corroded areas will be cleaned by pressure washing the tank to <br /> : _i�{�� - <br /> � � �j�� � remove the accumulated dirt, mildew and scale, identifying <br /> � ' ��'�� 14 � locations and performing spot repairs and applying the new coating <br /> . . � <br /> " � . ��� � " � system directly over the existing paint, as opposed to completely <br /> The adhesion of the existing coating removing the entire existing coating paint system prior to painting. <br /> system is su�cient to support an <br /> o�er�oac pro�ed��e. In addition, all of the telecommunication antennas and cabling will <br /> need to be removed from exterior surfaces, prior to the tank <br /> rehabilitation. <br /> The recommended exterior tank surface coating system will again <br /> be comprised of Tnemec products. It will consist of an epoxy <br /> prime coat (where applicable), followed by an aliphatic <br /> polyurethane finish coat Series 1074 U. The 1074 U system has LTV <br /> resistance properties which will help maintain the color of the tank <br /> for a longer period of time. <br /> The existing lettering/logo will be reapplied upon completion of <br /> the overcoat, unless directed othenvise. <br /> ��� . Wet Interior:As identified in the inspection, the walls of the wet <br /> interior, as well as the support trusses and roof beams, show signs of <br /> minor deterioration. Based on this condition assessment,we <br /> recommend an abrasive blast cleaning of these areas and the <br /> ��� �p�������'��'" � application of a completely new coating system. <br /> This will iilclude complete removal of the existing coating system to <br /> , a SSPC-SP10 near White Blast Cleaning condition with the <br /> Tne�o�drt�o�o fthe Wec��ce��o� '' application of a new coating system. The proposed coating system <br /> warrants the complete removal and Will be a two-Coat epoxy Series N140 that is approved by iVSF <br /> rep�a�erne�t oftne�oac��gsyste�,. International for application in the wet interior of potable drinking <br /> water tanks. <br /> recommended approach � page 7 <br />