Swim, probably A.L.F., sez that when it isn't out dorrs looking for Catzz, it has found a multitude of uses for "Epoxy". 1)HCL gas generator...shows no ill effects when exposed to HCL fumes. 2)Sodium Hydroxide solution..used in HCL gas scrubber apparatus...no ill affects. 3)Homemade Condenser joints...for both simple and fractional distillation apparatus, no apparent adverse reactions or self-destruct mechanisms. 4)I/E/RP-, used to seal tubing from reaction vessal to P/P...no ill affects. The 5-minute formulations are recommended for extreme solvent/acidic/basic applications, such as these examples,the 24-hour formulations are recommended for more physical applications (such as holding the scraper blade securely so that you can balance the beam of your homemade beam balance).