What will cause inhibition with platinum silicone rubber?
Inhibition is a scenario where a material has progressed through a cure cycle, but for some reason has not properly cured.
Inhibition can be caused by a variety of circumstances such as the silicone not being properly processed by the user. This would include not properly measuring the compound to the specified mix ratio. Not thoroughly mixing the compound could also lead to inhibition. Using the material in an environment that is too cold may also lead to inhibition.
Contaminants in the environment could also cause inhibition. For example, if you are using oil-based clay in your shop and that clay contains sulfur, the sulfur in the clay can cause inhibition when the silicone comes in contact with it. We recommend using non-sulfur based clays - specifically CHAVANT brand is what we recommend - specifically the NSP Soft clay is an excellent non-sulfhur oil-based clay.
Latex gloves can also cause inhibition. Latex gloves also contain sulfur which can leave contaminants on whatever surface they touch. We recommend using nitrile gloves instead; nitrile gloves do not contain sulfur.
Waxes or other compounds used in the shop setting may becomes contaminated themselves as well. Contaminated wax can cause inhibition.
REMEMBER! When considering the use of platinum silicones - in order to give the product a fair chance at properly curing it is necessary to create a scenario that does not introduce any potential for inhibition. Operating at room temperature (73 f / 23 c) with material that is stored & used at room temperature minimizes the potential for inhibition. Measuring & mixing the compound properly will also minimize potential for inhibition. Read & understand the technical bulletin for the product prior to using...