Phoenix summers are not good for working with resin, sets up almost immediately. Anyway my old resin was old and to my suprise was set up solid in the can. I had a new gallon on resin and chemicals ready to go. I promoted a new batch but left out the DMA hoping for more gel time. I tested three batches of 25 grams one at 1%, one at 1.5% and one at 2% MEKP. Both the higher MEKP batches were gelling within ten minutes. The 1% lasted about 32 minutes.