I have had two tools recently come my way that are slatted for 20% GFPP. Looked at Mold Flow, both show warp tendencies and both have been warped. More than MF said but in the areas. I have tried different fill rates, hold times/pressures, water temps, and barrel temps. My conclusion is that the orientation of the fibers is causing the warp. Our corporate team suggested we do tool work to include increasing the gate size from 2mm to 4mm and rad the corners as much as possible. None of this worked either.

Shot neat PP and 20% TF PP... Warp gone. What am I missing?

Both parts are direct drops. The last part is valve gated (3 gates on a rectangle part) and I tried sequencing them to no avail. I am getting very discouraged that this material is kicking my a$$.

Thanks!