Home Cosmetic Science Talk Formulating Strange Bubbles in Formula

  • Strange Bubbles in Formula

    Posted by thatjoevan on February 4, 2019 at 8:16 pm

    Hi everyone - I have a question about the pomade formula below and bubbles that I’m getting on the surface after I pour it into its container. The bubbles appear almost immediately and once they harden, you can rub/lightly scratch them off of the surface and the product below it is perfect. The bubbles are small and similar to a coarse sandpaper in size. 

    Ceteareth-25    25%
    Peg-7 Glyceral Cocoate    6%

    Water    53.2%
    Glycerin    6%
    Propylene Glycol    4%
    PVP    1%
    Triethanolamine    %.3

    Phenoxyethanol SA    1%
    Bamboo Extract    .5%

    PEG-40 HCO    2.5%
    Fragrance     .5%

    All of this is heated to 85-87C

    Thanks in advance!

    thatjoevan replied 5 years, 5 months ago 5 Members · 6 Replies
  • 6 Replies
  • Doreen

    Member
    February 5, 2019 at 11:40 am

    Maybe bubbles of air from mixing?

  • OldPerry

    Member
    February 5, 2019 at 2:31 pm

    That would be my guess. What type of mixer are you using?

  • Chemist77

    Member
    February 5, 2019 at 3:47 pm

    Look at those who ethoxylates, will be surprised if there is no foaming. On the brighter side, it’s all in the process. But minimal foaming is unavoidable.

  • Dirtnap1

    Member
    February 5, 2019 at 9:45 pm

    My guess this is on small scale formulations, correct? No real way of avoiding it. Bottom filling with larger batches will alleviate most bubbles. Large batches will also have foam/bubbles which form on the surface during heating and agitation.

  • thatjoevan

    Member
    February 8, 2019 at 5:23 pm

    Dirtnap1 said:

    My guess this is on small scale formulations, correct? No real way of avoiding it. Bottom filling with larger batches will alleviate most bubbles. Large batches will also have foam/bubbles which form on the surface during heating and agitation.

    That makes sense. Thanks for your help!

  • thatjoevan

    Member
    February 8, 2019 at 5:24 pm

    Perry said:

    That would be my guess. What type of mixer are you using?

    Hand mixing with a whisk. I slowed down the stirring quite a bit and that seemed to help in reducing the amount

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