Originally Posted by threeputt
I have the .5 and the .25 Amplex pastes, and I have no idea if the grain size is accurate or not. After the Shapton 15k, IF I go to a pasted strop, I go to the .25 micron. I don't use the .5 any more. Just the sound of a blade stropping on the .5 micron sounds too aggressive to me. It sounds gritty, if that makes sense. Like there is sand embedded in the strop, only not that extreme. I don't have the exact answer to your question, but I get very good results skipping the .5 micron and going right to the .25 for about 20 -40 laps, depending on type steel. ..................Jeff