CanaryGT said:
Why does a Rotary Buffer work better?
To remove defects you need friction and a little heat to remove small ammounts of paint or clear... A DA spins on 2 axises and what happens when you apply pressure (for heat and friction) it will slow down and stop rotatings (it kinda spins slow and makes little circles as if you were rubbing the paint with the pad by hand). Where with a rotary, when you apply pressure it will continue to spin as if there were no pressure. But if you apply too much pressure and/or keep the buffer in the same spot you will have too much friction and heat and kill the pant...
When you compound or polish a car what you are doing is removing a very fine layer of paint to remove very fine scratches and defects, not much different then sanding really. This is where friction and heat come into play, but if you have too little, its gonna take all day or not happen at all... and if you have too much, you will remove too much paint and totally ruin the finish...
This is why its very important that you know how to properly operate a rotary buffer. It is very easy to make a mistake... While with a DA, you can be a retard and not destroy your paint as it is very difficult for one to create enough heat and friction to chew through your clear/paint
