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Old 29-03-2005, 05:33 AM   #25
explorer
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My job requires me to use Glassbeads(GBs) for wet blasting (GBs+ Water+Pressure). Be careful when using GBs. Please rinse them carefully and throughly before placing them in the Aquarium . I have done some test on whether it reacts with metals and one of the test that I did was its Alkality. Found that its Alkali level is extremely high straight out of the bag. This could be due to its manufacturing process???GBs are obtained by spraying molten glass into water. When molten glass solidify, it becomes beads. These beads are then sieve to get the correct sizes and pass through a cyclone to separate those which are round and those odd shapes are discarded. The good ones are then packed into bags (generally 50lbs) according to sizes.
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