Kevin,

Right on!!

We also had this problem, you pipped me to the post!

Regards

Bryan

>----------
>From: 	kevin gibbon[SMTP:gibbowax@uniserve.com]
>Sent: 	August 10, 1999 10:49 PM
>To: 	Histonet@pathology.swmed.edu
>Subject: 	paraffin problems
>
>Hi All,
>I also have had this problem and it drove me nuts for a long while. 
>
>However, I traced it to the use of "mold release". Some of the molds were
>drying in the upright position after being dipped in "mold release"
>allowing it to accumulate. When the wax was added the next day the "mold
>release" was absorbed into the wax and consequently caused the sections to
>explode.
>
>When the molds were reused (on the same day) then the sections were fine.
>Ever since then the molds are dried upside down and the problem has never
>re-occurred.
>
>Kevin Gibbon
>Wax-it Histology Services
>
>
>