Laser spatter on Inconel

[Vindicit]

So I cut Inconel and Stainless Steel on a 400 watt CO2 laser, typically between 0.007 - 0.015in thick so sheet metal. I use Simple Green Anti-spatter and it seems to work good for Stainless Steel but on Inconel of the same thickness I tend to get a very small amount of spatter adhering to the back side of the parts. If there is any spatter what so ever then I need an additional operation to remove the spatter and its usually sanding the back side of every part. During cutting I dont use any piercing operation as that tends to make the job take much much longer but the spatter usually is not near the lead in anyway. I've tried some other anti-spatters like Walter and Weld Kleen but I get the same result or worse. I've tried different cutting settings and so far anything different is worse than the original settings. I cut on top of a honeycomb bed. I dont know if spatter is bouncing back up from underneath or if its deflecting horizontally and sticking that way. The spatter only seems to stick in a zone close to the cut in an area that looks like the anti-spatter is evaporating potentially or just getting pushed away by the assist gas pressure. I dont like the idea of using the plastic protective sheets underneath as that probably takes a long time to remove on the many small parts that I cut. Is there any anti-spatter that you guys use thats still water soluble but more heavy duty that will stick better?