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Pellon Sof-Shape Fusible..

WandaJ | Posted in General Discussion on

Does anyone not follow the directions on the subject nonwoven interfacing, which states, “No pre-shrinking necessary?”

I’ve always read and heard that interfacings are to be treated prior to using in order to eliminate bubbles when applying and after it has been laundered, or dry cleaned.

The question is to pre-shrink or not pre-shrink when the description states it’s not necessary to do so.



  1. solosmocker | | #1

    I preshrink all interfacing. Better safe than sorry. It gets the treatment the minute I get it into the house so I am always ready and don't have to worry about it.

    1. WandaJ | | #2

      Pre-treating upon returning home makes a lot of sense. It's always ready for use. Thanks.

  2. alotofstitches | | #3

    I pre-shrink ALL fabrics before sewing.  The bubbles are caused from shrinkage of either your fabric and/or your fusible.   Cut fabric piece, cut fusible and place it glue side to the wrong of fabric, cover with a press cloth and use a clock to time your pressing.  You must have an iron with lots of steam or you can lightly spritz the fusible before covering with a press cloth. Hold your iron about 1/4" above the press cloth, shooting steam & moving it around over the entire piece--you can see the fusible shrink! I make a lot of ladies suits and follow this method with good results--much better than pre-shrinking the fusible.  I use a steam press & the bed is heated so when I spritz the fusible you can see it shrink right away.  With either method you need to let the piece cool before removing the press cloth.  Depending on the fabric and/or fusible it will pull away sometimes.  Another thing--when you pre-shrink DO NOT  use a fabric softner or the dryer sheets as it prevents good permanent adhesion.

    1. WandaJ | | #4

      Thanks for detailing how to use fused interfacing material. I stopped using them about 9-10 yrs ago because of the bubbling. Of course, back then I was not a pre-shrink person! It's been since I began reading the tips and information in this site as well as other fabric/sewing sites, and books on this (and other related subjects) that I'm learning more and more about being successful with sewing.

      I will try your method next time I have to interface, but I'm not going to promise that I will not remain dedicated to sew-in interfacing :->.

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