Smooth-On Super Instant™ Epoxy is called a five-minute epoxy, three minutes would be more like it. Mixed 1:1 by volume, this material will bond stone, wood, ceramics, metal and some plastics. Not recommended for high strength bonds, but when used as a "clamping" glue along with a 24 hour epoxy, it will hold while the higher strength material has time to set.
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