Help gels cracking

Ian A. York iayork at
Tue Mar 18 10:40:49 EST 1997

In article <5glurs$opt at>,
Mr. G. Morley <gmorley at> wrote:
>Although her 8% acrylamide sds gels dry down fine (normaly
>within 2-3hrs) her 10% gels are cracking on the gel dryer.

Although it's true that high-percentage gels tend to crack during drying,
a 10% gel doesn't count as high-percentage in my book.  I'd look very
closely at the gel dryer, and particularly at the vacuum source.  If the
vacuum is remotely adequate this shouldn't be happening. 

Kodak, and some other companies, make a high-tensile-strength acrylamide
that is much less likely to crack; Kodak's is called "Duracryl", I think,
and I can't remember who else makes it (but the other company is likely
cheaper).  This is not solving the problem, though, it's merely avoiding


      Ian York   (iayork at  <>
      "-but as he was a York, I am rather inclined to suppose him a
       very respectable Man." -Jane Austen, The History of England

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