5-97
506.34 TSC Application Record the batch and lot numbers of the consumables.
Measure the environmental conditions in the immediate vicinity of the p iece(s) being coated during the coating operation and during the entire cure period for intermediate and top coat. Provide two data loggers capable of measuring ambient hu midity and temperature. The data loggers shall come with software that can download the data onto a computer. Print out the data and provide a copy to the QAI for review pri or to applying the subsequent coat of paint. Place the data loggers in the immedi ate vicinity of the coating operation during the entire application and curing cycl e. The data will be used to determine that the cure/recoat time requirements for each coat have been met. Failure to comply will result in the coating being cured for the maximum t ime necessary to assure adequate cure as de termined by the Fabrication Engineer.
506.35 Seal Coat and Top Coat Application (Paint) Apply a wash primer and/or seal
coat of 2 to 3 mils thickness . The seal coat shall be compatible with an epoxy intermediate coat and a polyurethane top coat from the NEPCOAT QPL. Provide certification of compatibility between the seal coat and interm ediate coat from the intermediate coat/top coat manuf acturer. Top flanges of beams r equiring shear connectors shall receive a seal coat only.
506.36 Materials Provide mater ials in accordance with 506.11.
506.37 Mixing and Application Mix and apply in acc ordance with 506.14.
506.38 Dry Film Thickness Measure and record the DFT in accord ance with 506.15.
506.39 Touch-up and Repairs Repai r damage to TSC by re-blastin g the damaged area
and re-applying TSC in accordance with this Specification. Per form touch-up and repairs to paint in accordance with 506.16. FUSION BONDED EPOXY COATING
506.40 Description This work shall consist of surface preparat ion and application of
Fusion-Bonded Epoxy (FBE) coating, in accordance with the Plans and this Specification, including measuring and documenting DFT and testing for holiday s and other discontinuities in the epoxy coating. The FBE shall be applied to all surface areas indicated on the Plans. Perform surface preparation and application of FBE in accordanc e with the following Specifications:
A.Steel pipe pile- ASTM A972, Fusion Bonded Epoxy-Coated Pipe Pile
Source: Maine Standard Specifications for Road and Bridge Construction, 2020 Edition. Pages 389–389 of 817.