Problems with Castaldo Rubber Titanium


i bought titanium rubber and i don’t get good models. First of all i
vulcanize it at 307f and with enough rubber in the frame and always
with a extra layer, i get a model a lot of sticky and the diamond
that appears in the layers don’t disappears, the second model i tryed
with less temperature but more time (15minutes per layer) but the
diamonds appers in the impresions and the mold sticky,the third with
more temperature but the results are a model more sticky that the
others.i clean the frames, the vulcanize are calibrated with
termometer and all the days i make molds with silicone and the models
are very good.what is the problem?

thanks for all.