In your mixing cup, pour enough resin to cover the entire area thoroughly.

Mix in an even amount of Q-Cell filler and stir until well-mixed.

Once well mixed, add catalyst (hardener) as normal : i.e., 5-6 drops per 20ml of resin (a drop or two more if the weather is cold; a drop or two less if the weather is warm).

If doing a large mix (this repair is a large mix), you do not need to add as much hardener. 75% of the total will be fine as it is plenty to catalyze the reaction.