We've just launched our map. Add yourself by clicking here!


injection molding – blending of EVA + PP


This topic contains 0 replies, has 1 voice, and was last updated by  Lori 6 months ago.

Lori gargamel

injection molding – blending of EVA + PP

13/03/2018 at 03:26

Hello from a newbie! I do not have any plastics expertise so please forgive me.

I have developed a product but it is having manufacturing problems and I haven’t been able to find a solution.

My product requires an EVA masterbatch to be blended with flame retardant PP for injection molding. (This is an electrical product and I am not the manufacturer.:))

I know that EVA is polar and PP is non-polar but, the masterbatch I’m trying to use is marketed as compatible with almost all polymers, including a “good” rating with PP.

The EVA only needs to be 5% of the total construction with FR-PP being 95%. However, when the molds come out, almost all of them have surface cracks which makes them un-usable.

If anybody has any advice on how to blend EVA with FR-PP I would really appreciate it!

I’ve read about using PPMA & EVAOH compatibilizers but I really doubt my manufacture would consider using another additive.

Is this my only option or would there be any other solutions?

Thanks so much!

0 replies
0 subscribers
0 saved

You must be logged in to reply to this topic.

  • Folks that were just here

    Profile picture of Lehlohonolo Diegracious Ngake
    Profile picture of Sue Yee
    Profile picture of Suzane.S
    Profile picture of Dave Hakkens
    Profile picture of Irem
    Profile picture of John-Patrick van Rensburg
    Profile picture of Rene
    Profile picture of Nicolas
    Profile picture of jan
    Profile picture of Tjerk
    Profile picture of Steph Miserlis
    Profile picture of Joana
    Profile picture of Georgi Iwanow
    Profile picture of Alfredo Fajardo Llamas
    Profile picture of Cristobal Escamilla
    Profile picture of sinisa bujas
    Profile picture of Irena Uebler
    Profile picture of Marius
  • Recent Replies