MEGABORNE M116-9174 water based epoxy zinc rich shop primer were found to be suitable to be applied with manual airless using a spray tip size of 317 and the coated steel structures were found to have similar surface appearance with solvent based epoxy zinc rich shop primer. The coated surfaces were also found to be smooth and flat without any surface imperfection and odorless.

MEGABORNE M116-9174 water based epoxy zinc rich primer were subjected to both manual and auto airless spray application at HPCL on line shop priming production line. The water based shop primer were found to be suitable and free from welding defects during spot and continuous welding process with a dry film thickness of 15-20 microns.

No visual sign of MEGABORNE M116-9174 epoxy zinc rich primer delaminating from the corrugated steel panel after cold stamping and container fabrication process.

MEGABORNE M150-7035 water based epoxy intermediate finish was found to be suitable for used with HPCL existing on line production set-up. The total DFT readings were found to be slightly lower than the coatings specification and there were no visual sign of application defects such as sagging, blistering and over spray.

Adhesion tests in accordance to ASTM D3359 were found to be complied with KTA-TATOR requirement.

There were no visual sign of coating defects during the over-coating of M150-7035 over M116-9174 water based zinc rich epoxy primer and over-coating of M200-5017 over M150-7035 water based epoxy intermediate coating.

The average total DFT of the external surfaces were found to be 110-115 microns within PIL painting specification. The average total DFT of the internal surfaces were found to be 70-75 microns within PIL painting specification. All 10 units X 20’ GP containers were further subjected to water testing, cross hatch adhesion test, scratch resistance and natural exposure test to determine the mechanical performance of the overall container.

All the cross hatch adhesion test for both external and internal surfaces were found to comply to ASTM D 3359 method B, KTA-TATOR and IICL requirement 5B

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Mega has successfully carried out our water based container coating system – MEGABOURNE with SINGAMAS GROUP at GSPC factory at SHUNDE factory  on various types of corrugated panels to identify the critical factors involved with the application of water based coating system technology for the substitution of more environmental friendly coatings used in the future of container coating industry.

The finish appearance of both internal and external coating systems used during the test trial was found to be free of surface imperfection and other defects.

MEGAMAR M116 was also tested against welding joints test and found to be free of defects with a DFT reading between 15-25 microns.

The prepared panels were be subjected to further corrosion performance testing on water immersion, salt spray test, accelerated weathering and other mechanical performance test.