Not being dismissive at all... Simply pointing out that if you use a blade with these things they will get cut... And particles will be released... But that is not its intended function... The concept of using the pad is so that you do NOT need a razor. Hence the "never scrape again" pitch. They were designed to be solvent resistant, not knife resistaint! Its like saying that my skin isnt good at its intended finction if i cut it with a razor and i bleed...
Please take no offence as i did not intend my statement to be as such, but one cant blame the material for human error. And at the same time let us not dismiss the fact that obveiously you can concur that the black PTFE screen printing sheets are no good! Maybe because they are actually designed to let a very small ammount through... They are for screen printing after all, not bho making.
Edit: so it is clear, i was laughing at my lame joke, not the topic we are discussing... I am very mindful of my process and can happily report i have never had such a fine product as when i am using my oil slick pads!