I believe there is only one type Hysol 9460 that is made by Loctite, but it does come in various quantities. There may be other variations of Hysol, but they would have a different part number.

As far as curing here is what Loctite says on their website:
Complete cure will be obtained after 72 hours at room temperature. Hysol 9460 will take approximately 6 to 8 hours when heat cured at a maximum temperature of 149°C. After 24 hours of cure, 90% if full cure properties are attained at room temperature.

So Hysol can be cured at room temperature or with heat, it just changes the cure time. This is true of almost any two part glue, epoxy or varnish. As an A&P we need to know where to find this information because there are times we need to get a plane back on the flight line ASAP. At times we speed up the cure time using heat.