[marxjunk]

look into bake abrading.....its a machine that warms the part, then its shot with micro stainless beads...it makes alum look "right" and cast iron looks NOS..i have a guy i use and i run everything i can thru him but bolts the finish is incredible..for a resto shop...it can be profitable...i use him, for the cost thing..he charges me 35 bux a load and will load the machine to capacity..even tumbling, cost me time..

you load them on a big cartridge and a small crane moves it from one heat vat to the blaster vat and it rotates automatically etc.....its amazing...i will get some pics of the finish on alum

he does exhaust manifolds..clutch pedal. bumper brackets, intakes, blocks, heads, brackets pulley's, anything i bring him..and he doesnt advertise it..i think hes missing the boat..resto guys would flock to him..maybe he doesnt want that work either..i dunno

it doesnt change the surface either..no fuzzy looking metal..and every mark, machining mark stamp etc survives..best piece of machinery for a resto business for surface prep there could be..