So I am building an E50 for my silver maxi and i am going for a silver and black "shadowhare" look. I am tring to be cheap so i was wanting opinions on whether High temp paint would last on the case.
So I am building an E50 for my silver maxi and i am going for a silver and black "shadowhare" look. I am tring to be cheap so i was wanting opinions on whether High temp paint would last on the case.
your E50 probably shouldnt get hot enough to fuck up the paint...
when me and nils lived in albuquerque he bought a cheap bead blasting/powdercoating setup and a small toaster oven. he powdercoated the engine cases white and it turned out great! only took about an hour too for the whole job. plus the case halves fit really easily into the oven.
personally, powdercoating just LOOKS better in a situation like that.
yeah thats what i am thinking. One of my good customers runs a Coating shop so I am leaning that way
powder coat.
you don't need an oven, just a good enough ir lamp. you can buy propane ones for like 100 bucks.
I've powdered multiple peds and items this way. You just have to learn temperatures and bake times to get the eye for it.
Will the heat be greater with the powder insulating the case?
no.
Car part shops like Kragen sell paint made for engine blocks. Factory Pontiac engine block blue is sweet.
powder. paint lasts ok, but it still flakes, chips or gets hurt when you spill gas all over it.
so powder doesn't insulate the case causing an increase in temperature? Forreals? It only seems like it would, thus decreasing engine performance / life.
Aren't Metrakits powder coated? They don't feel like regular paint.
"Some overhaul shops claim beneficial cooling effects of black paint on their engine. The theory is that black is a better emitter of infrared (heat) energy. A hot engine in a cold surrounding, radiates energy from the hot object to the cold. The amount of radiant cooling is (generally) dependent upon the temperature of the emitter (engine) and how efficient the engine is at radiating energy -- its emissivity. This derives from Kirchoff's Law where good absorbers are also good emitters. Since black is a good absorber of energy (that's why it's black) it's also a good emitter. A black object emits more radiant energy (cools faster) than a white or gold object that emits less radiant energy per unit of time. Painting an engine black increases the amount of radiant energy emitted by the hot engine to its colder surroundings and it will be cooler than a non-black engine."
First paragraph from here
I was toying with the Idea of getting out the Dremel and Die-Grinder and Polishing the Cases as much as Possible.I know they would start to Oxidize quickly so I would have to try out different waxes or oils to keep them Bright.Would look cool.
Regarding paint color, i did a project for an engineering class last year, designing a heat sink. Flat black almost always has the highest emissivity, so the thinnest coating of the flattest black is going to be the best for emissivity, and thus radiant cooling. I did find out one odd thing though: rusted cast iron has damn near the best emissivity that i could find. Kinda annoying when my pa50's cylinder is rusted to all hell, and looks horrible, but works perfectly!
I've heard of "sandblasting"aluminum wheels with baking soda for a nice satin finnish. If you did an engine you'd have to protect the inside and bearing/oil seal surfaces.
All the tinny rust pits increase the surface area? HAHAHA, funny how things work.
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