Can I add glitter to Caffelatex for improved sealing efficacy and puncture protection?
So long as there is no chemical interaction going on, there’s no problem adding bits of thread, glitter, hair, finger nail shavings, etc… to the Caffelatex. Adding bits of materials for improved sealing efficacy and puncture protection assumes you’ll have a constant distribution throughout the mix which is likely not the case. You also risk jamming up valve mechanisms. But, as they say, what the hey… go for it if you think it will increase puncture protection, or have had positive experiences with it in the past.