Crystals on vulcanized NBR articles
Crystals on vulcanized NBR articles
(OP)
We are making rubber gloves using NBR rubber grades.Currently we are having serous problem because very tiny and shine crystal particles are coming onto glove surface with the time. With our preliminary testing we have clues that this is not sulfur blooming.
We suspect that few possible reasons.
Particles are shiny, white in color and very small.
Please send if you have idea or a method to clarify the material.
Thanks
We suspect that few possible reasons.
Particles are shiny, white in color and very small.
Please send if you have idea or a method to clarify the material.
Thanks





RE: Crystals on vulcanized NBR articles
RE: Crystals on vulcanized NBR articles
RE: Crystals on vulcanized NBR articles
Chemical analysis is really the only way to identify the deposit. One always suspects a dithiocarbamate bloom and sometimes you can detect this by rubbing your finger with a copper containing coin or object and then pressing it against the surface. A brown discoloration should develop after the change to a cupric dithiocarbamate. I'm not convinced about undercure unless your vulcanizate properties fall short of optimum.