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4

You can definitely mix the quartz waste with epoxy. In fact, it can be mostly waste, with just enough epoxy to bind it together. Mix thoroughly so all of the quartz is covered with epoxy and there aren't pockets of quartz powder. It's also helpful to press the mixture into shape to force it together and eliminate tiny gaps and air pockets (you want a ...


3

I'd try polyurethane varnishes. They are weatherproof, contrary to standard acrylic varnishes, they are transparent, but may absorb a bit of UV light, as UV is sometimes a catalyst to the reaction to form them (source : wikipedia) (only a guess here, as I didn't find valuable PU absorption spectrum). It is also stated that polyurethanes with isocyanates ...


2

Frame challange: there are silks that may survive, but silk just isn't the material you want. If you use silk Modern silks are flimsy because the raw material is expensive and modern people value price over quality. A cheap silk sells better than an expensive one, even if it's low quality. A sturdy silk needs to be: Heavy! There needs to be a lot of ...


1

You can try the windshield repair resin to hold the loose chip. Citrine is a form of quartz, which is the primary component of normal glass, so a resin designed to match the refractive index of windshield glass might not be visible. I don't think it will work for an internal crack in a gemstone, though. The resin won't seep into the crack under normal ...


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