1 The epoxy mixture has cured to a solid state and can be dry sanded and shaped. 2  You should not be able to dent it with your thumbnail. 3  At this point the epoxy has reached about 90% of its ultimate strength, so clamps can be removed.4  It will continue to cure over the next several days at room temperature.he time it takes for this transformation is the cure time. As it cures, the epoxy passes from the liquid state, through a gel state, before it reaches a solid state (Figure 1). As it cures, mixed epoxy pass from a liquid state, through a gel state, to a solid state.
But the population factor in ânaturalâ disasters is not just important in poor countries, as overpopulated/overexposed East Coast areas in the United States learned during Hurricane Sandy. In the United States, infrastructure development is not keeping up with population growth.
Disasters can take many different forms, and the duration can range from an hourly disruption to days or weeks of ongoing destruction. Below is a list of the various types of disasters â both natural and man-made or technological in nature â that can impact a community.urricanes and tropical storms are among the most powerful natural disasters because of their size and destructive potential. Tornadoes are relatively brief but violent, potentially causing winds in excess of 200 mph.