5000 HOURS SALT SPRAY PROJECT

Design of the experiment ABL MEZ-IPF PROJECT 5,000 SALT SPRAY HOURS 5,000 HOURS SALT SPRAY PROJECT STEPS Testing were performed by an independent lab 1 Design of the experiment 2 CASS RESULTS 5000 HOURS SALT SPRAY RESULTS 3

5000 HOURS SALT SPRAY RESULTS ABL MEZ-IPF 5000 HOURS SALT SPRAY RESULTS Process: B5: BCI 5 stages B9: BCI 8 stages H5: Houghton 5 stages H9: Houghton 9 stages Coating: EC: Epoxy primer with superdurable paint NC: Only superdurable paint from Vitracoat ND: Only superdurable paint from Sherwin W PD: S. Williams Primer with SW superdurable paint An ASTM 1654-08 rating above 6 is acceptable according to ABL standards All samples were obtained from the raw castings

RATING ASTM D 1654-8 *All options above the “6 rating’ approved the test after 5000 hours of salt spray BCI 5 stages Epoxy Primer Super Durable Paint Houghton 9 stages Epoxy Primer Super Durable Paint Houghton 9 stages Without Primer Super Durable Paint BCI 9 stages Without Primer Super Durable Paint BCI 9 stages Epoxy Primer Super Durable Paint

CASS 39 DAYS RESULTS ABL MEZ-IPF CASS 39 DAYS RESULTS BEST PERFORMANCE COMBINATION The best performance is the combination of: Paint: Vitra Epoxy + Super durable Process: BCI 5 stages ASTM RATE *Every result represent the average of the 4 alloys tested

ABL MEZ-IPF CONCLUSIONS Based on 5000 hours salt spray testing we see a feasible process to deliver 5000 hours BCI 5 stages + Epoxy primer Based on CASS testing the best performer process is BCI 5 stages + Epoxy primer. As a conclusion BCI 5 stages + Epoxy primer process will be the best option due to: Validated results with an external laboratory. Assurance the 5,000 hrs with a rate of 7 astm 1654-8. Is achievable with the current equipment. Process is ready to run. Conversion cost is not significant affected by adding the epoxy process.