Blush or Graying at molded part edges

[stevemboise]

Thanks iamplwirtz.

The part pulls without issues, not sticking to either core or cavity halves of the tool and no scraping on the texture.

I appreciate the thought and reply though.

[iamplwirtz]

Has this always been an issue? Whats your mold temp?

[Pilot]

By my opinion it is a pressure issue. Wall thickness and cooling of the melt in the tool. Please try to check, if it appears also on the part without holding pressure. than you will see, from which stage it comes.

[rickbatey]

Looks like a wall thickness change reading through. I think you’ll have to adjust wall thickness change on underside to fix the issue.
BTW how much draft is on the part? Little draft could create a dragging incident with the grain as the tool opens.
Rick.

[Derrick]

Yes, I agree, it is probably due to the uneven thickness, in inner side, there is probably some cutout inside.

[djshauns]

I see this a lot myself being from a wall thickness area, someone has mentioned above about turning your hold psi off to see if it is there or not.
I've been able to fix these issues by dropping pack and hold time.

[Jendalf]

:X Someone!

So whats the result Steve? With PC/ABS it not so clear, can You also make some additional pictures (detail, B side, where are gates, crosscut of the part)
J