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I want to print a part from Thingiverse. In the description, the creater writes that he used SBS to print it. I did some research because I never heard of SBS. I found a description on Filaments.directory that describes it as:

Poly(styrene-butadiene-styrene) is a hard, durable rubber that is commonly used for shoe soles, tires and other products that experience high wear.

But if I search for SBS filaments to buy, there only shows ABS up. Did I misunderstood something and SBS is the same as ABS.

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    $\begingroup$ It's probably just a typo, and the contributor meant ABS. $\endgroup$
    – Mick
    Sep 27 '20 at 12:40
  • $\begingroup$ @Mick nope! It's a rather rare polymer. $\endgroup$
    – Trish
    Sep 27 '20 at 13:07
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    $\begingroup$ A and S are right next to each other, the odds this wasn't a typo are slim considering SBS barely is a thing. $\endgroup$
    – dandavis
    Oct 1 '20 at 19:07
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As you found and according to this site, SBS is a Styryne-Butadiene polymer that only contains Styrene and Butadiene chains interlinked. This is similar to ABS, but not identical.

Some people have access to filament manufacturing machines or use pellet extruders, however, googling for "SBS" filament I was able to source at the moment two sites with information:

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  • $\begingroup$ Now I want some of this stuff. $\endgroup$ Sep 28 '20 at 1:42
  • $\begingroup$ @R..GitHubSTOPHELPINGICE Filamentarno now has got a branch in Estonia, sends plastic to EU. $\endgroup$
    – dottedmag
    Oct 16 at 12:36
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This response might be way late but no, SBS is not a typo. Here are the info:

SBS (styrene-butadiene-styrene)

Poly (styrene-butadiene-styrene) or SBS, is a hard rubber that's used to modify asphalt, to make soles of shoes, tire treads, and other places where durability is important. It's a type of copolymer called a block copolymer. Its backbone chain is made up of three segments. The first is a long chain of polystyrene, the middle is a long chain of polybutadiene, and the last segment is another long section of polystyrene.

Polystyrene is a tough hard plastic, and this gives SBS its durability. Polybutadiene is rubbery, and this gives SBS its rubber-like properties. In addition, the polystyrene chains tend to clump together. When one styrene group of one SBS molecule joins one clump, and the other polystyrene chain of the same SBS molecule joins another clump, the different clumps become tied together with rubbery polybutadiene chains. This gives the material the ability to retain its shape after being stretched.

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