[Histonet] making a perfect paraffin block?

[jason madore]

does anyone have any advice on making a perfect 'blank' paraffin block in 
the lab (not a pathology lab). This block will be the recipient for a tissue 
array. How do you avoid internal cracks and how do you get the block out of 
the mold? also how do you make sure it is strongly attached to the 
cassette?... any help would be greatly appreciated.

thanks
J.

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