The glue will not bind and there is no (sufficiently strong) adhesion. There are also differences in the elasticity of the glue - from elastic to crystalline hard. Moreover, even within the categories, it is not guaranteed that strong adhesion will occur; the whole thing is extremely dependent on the nature of the material to be glued. I recently tried to glue two polycarbonates with this product, on one it adhered as if it were part of the material and on the other there was virtually no bond at all. My recommendation: Choose the right category (don't choose "stone" if you actually want to glue plastics) and then test it first on an unobjectionable spot. Gluing is a science in itself...

According to the manufacturer, Blufixx can be used for up to 24 months, provided the product is protected from direct light.