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Powder SLS vs. liquid SLS
I’ve been given multiple suppliers for SLS. Some suppliers have it in liquid form while others have it in powder. I’ve been told that the %grade is the difference between the two. If this is true, I still don’t know what that means.
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6 Replies
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if it’s a powder, it’s concentrated (typically 95% w/w)
if it’s a liquid, it’s a dilute solution (typically 27% w/w)
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I should have made my question clearer. Is the powder being diluted with only water or are other chemicals involved?
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Even better. The powder is a pain to work with. I am sure some can tell stories. The liquid is easier but be sure to keep an eye on the total solids, especially from supplier to supplier.
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^^^ The above. I had all sorts of mad failures in formulation early on because I failed to realise that there were different grades.
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the powder usually has some water in it as a remnant from the manufacturing process
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A number of the liquid SLS versions use alcohol to reduce the thickness of their blends. Otherwise, you can’t make a flowable blend much above 30% SLS.
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