I have used fluid film for several years now with good results. I have an inexpensive gun and usually do any new vehicles over a period of time, one section at a time. Over the winter I found some Blaster surface shield on clearance and couldnt pass on the price. I had heard that the Blaster product was a little thicker and flowed a little harder through the gun. Based on what I found with the (2) 1 gallon pails I bought I would say that the Blaster was a little thinner and flowed as well or better that the FF. So far I have done the hood, doors and bed sides/wheel arches on my new truck. I still need to do the inner rockers and the inside of them. I am anxious to see how the Blaster holds up in comparison.