Specifications include, but are not limited to: LOCATION 2.1 Hydrants will generally be located in residential areas with work proceeding in a logical sequence throughout a specific geographic location. 2.2 Hydrants generally are spaced 300 to 600 feet apart. 2.3 The City reserves the right to delete hydrants from the list if the hydrant is near obsolescence, may be replaced by a project in the near future, or is a condition that does not warrant repainting. 3.1 The contractor shall take all necessary measures to ensure that existing structures are not damaged during construction. 3.1.1 If damage occurs, the City reserves the right to have the contractor repair the damage at no additional cost or hire another party to repair the damage at the contractor’s expense. 3.2 Contractor shall be responsible for removing all material and debris from the project site. 3.3 Each hydrant to be painted shall be prepared for painting by using a blast clean specification in accordance with the Society for Protective Coatings (SSPC) and NACE SP6 standard. PAINT COATINGS 4.1 First coat primer shall be Tnemec Series 90-97, or approved equal, applied at 2.5 to 3.0 mils dry thickness. 4.2 Second coat shall be Tnemec Series 73-SC09, or approved equal, applied at 3.5 to 4.0 mils dry thickness. 4.3 Final coat shall be Tnemec Series 1079 Metallic Clearcoat, or approved equal, applied at 1.5 mils dry thickness. 4.4 Approved equal shall be determined based on cure time comparison to Tnemec Series stated, and painted sample submissions as deemed necessary to establish equivalency to Tnemec Series stated for coverage on edges/corners. SAMPLE HYDRANT PAINTING 5.1 When/if requested, bidder shall perform a sample hydrant painting to allow the Lincoln Water System to evaluate methods and quality of work prior to bid award. APPLICATION OF COATINGS 6.1 Application of coatings shall be in accordance with manufacturer’s recommendations for necessary temperature and humidity ranges, curing times, additives, etc. 6.2 Manufacturer’s recommended application procedures shall be provided to the City for each product used. 6.3 Each application of paint shall be applied evenly, free from sags and runs, and with no evidence of poor workmanship. 6.4 No coating or paint shall be applied under the conditions listed below. If any of these conditions are present, the Contractor shall seek approval from the Engineer or Inspector before painting. If approval is not granted, the painting shall be delayed until conditions can be met. Painting shall be completed in time to permit the film sufficient drying/curing time prior to damage by atmospheric conditions. The conditions listed below shall be monitored and recorded by the Contractor in the form of a daily log. A copy of the log shall be submitted to the Engineer or Inspector. 6.4.1 When the surrounding air or metal surface temperature is below 45 F or above 95 F 6.4.2 When surfaces are too wet or too damp. 6.4.3 When there is rain, snow, fog, or mist. 6.4.4 When the temperature is less than 5 F above the dew point. 6.4.5 When it is expected that the air temperature will drop below 45 F, rise above 95 F, or drop to less than 5 F above the dew point within eight hours after the application of paint. 6.4.6 When relative humidity exceeds 85%.
