1. The 1 to 1 Activator can be used for non structural components. It is not recommended for structural repairs.
2. The 2 to 1 Activator is used for more open time. It has a longer pot life and can be used for water barriers.
3. The 3 to 1 Activator is a good general purpose epoxy and will bond to steel or aluminum.
4. The 4 to 1 Activator has the best general strength and tends to be harder and stiffer.
5. The 5 to 1 Activator is highly reactive and is generally used for blister repair.