Home Cosmetic Science Talk Formulating General Off Topic HDPE vs LDPE bottle mold

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  • amitvedakar

    Member
    August 20, 2022 at 4:43 am

    yes . hdpe is hard material. LDPE is soft. But I think machine compatibility  should be checked.

  • abdullah

    Member
    August 20, 2022 at 3:46 pm

    yes . hdpe is hard material. LDPE is soft. But I think machine compatibility  should be checked.

    thanks. the problem is that manufacturers here use HDPE plastic and dont know about LDPE but the the company who makes the mold and is in another country says it is for PE, probably LDPE. i dont know any manufacturue who knows about both types of plastic.

  • amitvedakar

    Member
    August 21, 2022 at 4:44 am
    ACtually you can use LD or HD for same mold. The difference is bottle sturdiness. As i Know if Blow molding machine is used then you can use same mold for both the material. Material grade is important.we can use  LD & HD both material for same bottle mold.
    we can use both material for cap that is made by Injection technology. but the material grade is different. LD, HD & PP are all PE. PP is harder than hd & LD.   
  • abdullah

    Member
    August 21, 2022 at 11:03 am

    ACtually you can use LD or HD for same mold. The difference is bottle sturdiness. As i Know if Blow molding machine is used then you can use same mold for both the material. Material grade is important.we can use  LD & HD both material for same bottle mold.
    we can use both material for cap that is made by Injection technology. but the material grade is different. LD, HD & PP are all PE. PP is harder than hd & LD.   

    Thanks a lot 

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