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ok, i have some experience polishing- most of it bad experience. last summer i wanted to poilish a sandcasted intake and some valve covers, both alum. i bought greaseless compounds (4), a bunch of sisal wheels, cloth wheels, black bars, tan bars, white rouge, etc...the works. i than spent many filthy, dirty hours getting minimal results. here were the problems-
- i was told to use the greaseless compounds first, grittiest first down through all four, dedicating one cloth wheel to each grit. all that happened when i tried to get the compound onto the cloth was that i shot the compound all over the place and barely any stuck to the cloth. in any case, i tried to microwave the compound to soften it added water as directed and still no good.
- i than tried the sisal wheel with the black compound. the black **** flew off the bar and onto my face, didn't stick at all to the wheel, but the wheel by itself did some work anyhow. it took a long while, but it worked well, the surface was like a mirror. the sisal wheels kept coming apart in my face and after burning through 3 of them on half a valve cover, i gave up.
- just recently i used a baldor setup with regular old cloth wheel. the stuff that i used was a black compound that came in a cylinder, and you kind of put the cylinder to the wheel, it became saturated, and you polished with it. it worked pretty good.
i really want to get good at this. what rpm and horsepower do i need to look for in a solid mounted machine? it's looking like one of those is the best way to go. also, what' the black stuff in the cylinder? please, no more tubes of gunk that look like salami and don't do anything but aggravate me, i just need to know what the best way to get old crummy alum looking like a mirror without taking forever. if it costs a few bucks, fine. i plan on making a business out of it locally, quality of work is as important as ease of work and time.
thanks!
- i was told to use the greaseless compounds first, grittiest first down through all four, dedicating one cloth wheel to each grit. all that happened when i tried to get the compound onto the cloth was that i shot the compound all over the place and barely any stuck to the cloth. in any case, i tried to microwave the compound to soften it added water as directed and still no good.
- i than tried the sisal wheel with the black compound. the black **** flew off the bar and onto my face, didn't stick at all to the wheel, but the wheel by itself did some work anyhow. it took a long while, but it worked well, the surface was like a mirror. the sisal wheels kept coming apart in my face and after burning through 3 of them on half a valve cover, i gave up.
- just recently i used a baldor setup with regular old cloth wheel. the stuff that i used was a black compound that came in a cylinder, and you kind of put the cylinder to the wheel, it became saturated, and you polished with it. it worked pretty good.
i really want to get good at this. what rpm and horsepower do i need to look for in a solid mounted machine? it's looking like one of those is the best way to go. also, what' the black stuff in the cylinder? please, no more tubes of gunk that look like salami and don't do anything but aggravate me, i just need to know what the best way to get old crummy alum looking like a mirror without taking forever. if it costs a few bucks, fine. i plan on making a business out of it locally, quality of work is as important as ease of work and time.
thanks!
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