formulations were tested for stability at 82 u00b0 c and for cure speed on steel nuts and bolts the results are as shown in the table below the stability test is an accelerated aging test performed by placing the samples of the adhesive compositions in glass tubes in a water bath at 82 u00b0 c the tubes are checked frequently for gellation and the time at which gellation occurred is recorded in this test a non gellation period of about 60 minutes typically corresponds to a room temperature shelf life of about one year and of course a longer non gellation period is highly desirable and is indicative of the effectiveness of the stabilizer in the other performance test several drops of the adhesive compositions are placed on the threads of a sheet 3 8 16 bolt and the mating nut is then wound on loosely to engage the threads containing the adhesive after various periods of cure time two unwinding torque measurements were made 34 break 34 strength the torque required to cause the first relative motion between the nut and bolt and 34 prevail 34 strength the torque required to cause rotation of the nut 180 u00b0 beyond the 34 break 34 point table______________________________________ stability speed break prevail in lb stabilizer hrs 15 39 30 39 1 hr 2 hrs ______________________________________pentachloro 4 30 122 63 303 47 296 43 348nitrobenzene4 chloronitro 4 37 177 30 228 50 277 52 254benzenenitrobenzene 4 37 272 27 242 33 303 56 253______________________________________ formulations were also prepared having 0 1 percent by weight of the various stabilizers all other ingredients being in the same relative proportions similar test results were obtained the same formulation was prepared incorporating o dichlorobenzene the stability test resulted in gellation in approximately 7.