I have a refractory adhesive based upon liquid Na2O3Si and other unknown constituents. It remains a liquid until a specific temperature..... when it boils, or gasses. At this point, if the temperature is removed (or increased), the liquid becomes a solid. It would appear (perhaps incorrectly) that the 'boiling' is connected to the water content....... the remaining 'solid' is puffed up with air pockets. Worse..... in joints, the gassing causes ejection of the liquid (from the joint), just prior to setting. The immediate thought would be, to raise the pressure to a point where the water does not boil, yet the desired temperature is achieved. Hence the question (stated differently): Would the liquid turn to a solid, simply as a result of hitting the temperature, or is the gasification of water, fundamental to solidification? Notes: 1. The reaction occurs in the 115 - 120C range - exactness may perhaps be related to heat conduction through the components. 2. Maintaining temperatures lower than the 'boil point' produces no solidification. 3. As yet I have no ideal pressure test equipment..... my next step will be to test with a pressure cooker (clearly a 'dry steam' oven might produce conclusive results)........ hence why I figured that a chemist might be able to state what is actually happening. 4. I'm concerned that the pressure cooker will not build up pressure until the water (in the cooker) is actually boiling, and at 1 bar, boiling point will be 120C...... so test results could be inconclusive, and anyway spoiled by the presence of vapour. Does anybody know whether we can achieve 'solidification' without gassing?