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California98Civic · 03-31-2020, 12:00 AM

This 1998 OEM heat shield is steel (stainless?). Maybe 8 or 9 years ago, I painted it black with high heat enamel. That was a bad idea. A dude on here tried to explain emisivity to me, but I didn't get it. I understand better now.

Anyway, I got a couple hours today to sand and scrape and apply chemical paint remover over and over. Black slowly became this. I have a ways to go! I want to polish it up and get maybe a 0.10 emissivity (polished stainless steel) instead of a "black paint on metal" rating of 0.90 or so (zero being lowest and 1.00 being highest).

On emisivity I am following https://www.optotherm.com/emiss-table.htm

03-31-2020, 12:00 AM	#467 (permalink)
California98Civic Cyborg ECU Join Date: Mar 2011 Location: Coastal Southern California Posts: 6,299 Black and Green - '98 Honda Civic DX Coupe Team Honda 90 day: 66.42 mpg (US) Black and Red - '00 Nashbar Custom built eBike 90 day: 3671.43 mpg (US) Thanks: 2,373 Thanked 2,174 Times in 1,470 Posts	Emissivity and the heat shield This 1998 OEM heat shield is steel (stainless?). Maybe 8 or 9 years ago, I painted it black with high heat enamel. That was a bad idea. A dude on here tried to explain emisivity to me, but I didn't get it. I understand better now. Anyway, I got a couple hours today to sand and scrape and apply chemical paint remover over and over. Black slowly became this. I have a ways to go! I want to polish it up and get maybe a 0.10 emissivity (polished stainless steel) instead of a "black paint on metal" rating of 0.90 or so (zero being lowest and 1.00 being highest). On emisivity I am following https://www.optotherm.com/emiss-table.htm Attached Thumbnails __________________ See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.