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The Southern Delivery System is a 62-mile steel pipeline built to transport water from Pueblo Reservoir to Colorado Springs. A contract was awarded to the coatings applicator to install an antifouling coating system that would start from the new conduit, exiting the dam, to the first bulkhead.
The Southern Delivery System is a 62-mile steel pipeline built to transport water from Pueblo Reservoir to Colorado Springs. A contract was awarded to the coatings applicator to install an antifouling coating system that would start from the new conduit, exiting the dam, to the first bulkhead. Anti-fouling coating technology used to prevent the attachment of invasive zebra mussels was installed to the interior of the pipe with approximate dimensions of 130’ in length and 80” in diameter. Scope of work consisted of media blasting the new steel pipe and applying a four-coat paint system. This presentation will outline the process and procedure of the lining of the conduit.
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Due to the regulations of toxic biocidal products in marine environments, the development of nontoxic antifouling (AF) coatings has become required. The development of nontoxic antifouling formulations implies the use of ingredients (such as: polymers, additives and pigments) that are devoid of toxicity towards marine environments. In this regard, erodible coatings, based on biodegradable polymer, are used to respond to this problem. Recently, polyurethane (PU) has been adopted into antifouling coating due to its ability to migrate the certain functional groups which resist the attachment of fouling. Biodegradation of PU can accelerate the erodible properties which ultimately improve the antifouling properties. In this study, a series of biodegradable PU coatings was formulated by tuning biodegradable polyol. The antifouling performance was evaluated after certain intervals.