Leit C ia a conductive plasticine like material that can be used to mount larger specimens on SEM stubs. It is a special adhesive material for the preparation of large specimens for SEM. A range of Leit-C products are available, choose the product you require from the dropdown menu.
Leit-C Plast is a conductive plasticine like material that can be used to mount larger specimens on SEM stubs. It can be moulded to provide conductive paths to larger non-conductive samples and has has low outgassing properties, suitable for use in the vacuum of an SEM. It is conductive, and therefore does not require additional coating. Small rolls can be used as conductive markers on a specimen surface.
Characteristics:
Download the MSD sheet here
Instructions for use:
Leit-C Plast is rolled out between the two plastic discs. A small amount of the material is separated
with a spatula, applied to a stub and, if necessary, further distributed with a glass rod.
The specimen is lightly pressed into the adhesive material on the stub. Specimens which are non- conductive may be coated immediately afterwards before examining in SEM or for X-ray microanalysis.
For reorientation or preservation the specimens may again be taken off the adhesive. Small traces of Leit- C Plast are easily removed by surgical spirit etc. Due to the permanent plasticity of Leit-C Plast large specimens may move when brought into an inclined position. Therefore, if photographs are to be taken at high magnifications, it is advisable to fix the specimen directly on the stub by placing a ring of Leit-C Plast around it. A reliable method in the preparation of heavy specimens is the combination of Tempfix and Leit-C Plast. The specimen is fixed on the stub with the solvent-free melting adhesive Tempfix.
Afterwards an electrically conductive bridge between specimen and stub is made by Leit-C Plast. It is not necessary to wait for drying since both adhesives are resistant to high vacuum.
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