Pour your desired amount of A in one cup. Then pour the same amount of B in a different cup. Weigh each cup until you reach equal parts of A and B. Once they weigh the same pour A into your B. Stir with a popsicle stick for 45 seconds at a moderate pace. Stirring extremely fast will activate heat and make it kick faster. Once mixed well pour into your desired area, and hold in place until it kicks. From the time you mix the A with the B you have approximatley 4-5 minutes until it kicks. Allow 24 hours for the product to fully harden.