SPI-Pon 812 - Araldite 6005 Epoxy Embedding Kit (CofC not available)
Kit Contains (1450 gms):
SPI-Pon 812 = 450 ml
Araldite 6005 = 450 ml
DDSA = 450 g
DMP-30 = 2 x 30 g
This embedding resin kit is popular with microscopy laboratories the world over, and the SPI-Pon™ 812 is a direct replacement for the Epon® that was used in the original formulation.
This resin kit is known not only for its ease of cutting and the way it seems to "adjust" to different conditions of the ultramicrotome, but it also exhibits outstanding staining and preservation properties.
Note that the DMP-30 in the formulation has a relatively short shelf life, but, there are precautions one can take to lengthen it, thereby mitigating in some respects that one particular and known disadvantage.
An understated potential safety risk:
We are addressing now the cured block, something that to most people is about as inert of a material as one will find. But the standard practice in many laboratories is to use a small jeweler's (or even a small hack) saw to cut the block down to the right size, sometimes even to shape it. We want to address the dust that is generated and how its exposure can and should be minimized.