As I remember my two experiences with epoxy, temperature was a very important factor in the application both times. When doing my boat, i was working in the garage underneath the house. There were a couple of days when the temp got too high and we were advised to either do the job at nite, or wait for a cooler day. It was during mid summer and we got impatient. after a couple of days of waiting, we did the application. The first coat where we applied the fiberglass mesh went on ok. The second coat went on fine. The third, and finishing coat did give us some problems. we got a few bubbles that had to be sanded with patches added to make smooth. The patches were applied much the same way I learned a few years later to do do dry wall cement over nail holes. I also remember the dust from sanding Epoxy was not the most pleasant material i have ever sanded. The cloud was not great, as in those days, we knew nothing about power sanders, at least i didn't.
When I worked on the dairy floor, it was all trowel on and only a couple of swipes with the plaster trowel and it was done. No time for fussing around. a lot of swirls under those tanks. I had to stop to clean up trowels very often, as i remember. The work was done mostly in the night, so heat was not the biggest concern. If it was hot, we knew we would have had trouble. The business owner, as I remember, allowed us flexibility to change schedule if we expected too cold or too hot temps. It was a 7 day a week business, so we had to plan a little ahead. The worst part of that application was to mix quickly, get material to two of us applying, work quickly and try to keep our tools clean. I had been advised not to use my best trowels, so i bought a bunch of real cheeeepies. I did not get involved with cleaning my tools. i was too busy crawling on my tummy under those tanks. My helper did most of the out in the open troweling. (I am the sort of slave driver who never put anybody onto a project I would not do myself. Dumb [unsure])i remember I was not in very good shape when the job was finished. The fumes were a real hazard. My knees and back were in pain. (back problem was always a very debilitating problem for years. i knew how to work for some prevention, but a wrong twist could real lay me up for a few days.) I was not happy with the finished job from a stand point of proud it looked so nice. The owner was happy the job was done. None of us were happy with the appearance, especially me. About the only thing from my point of view was the floor was smoother when we finished than it had been before we started. There were no ankle breaking holes. a few toe stubbing wrinkles maybe; but those were under machines (mostly pumps) and tanks.
The job did not look anything like the floor samples from Scotts work.
As i write, I just thought of another application for epoxies was much easier for me to apply. The company i used to buy most of my concrete products, cement and lime from was a small operation. The owner of the biz was very imaginative and always thinking of new ways to do things. I bought some of my flagstone and marble from him fore fireplace facings. He had developed a method for epoxy to make flat stones out of the material. He used stone dust from various sources to make swirls in the clear and semi opaque material that he poured and vibrated into forms to make 1" thick "stones". He also developed a mastic to apply to the backing surface that could be worked over a wider temperature range than most previous materials to work with epoxy. I never worked with his manufactured epoxy stones, but I remember that most uninitiated might not know the difference between his epoxy stones and real stones. Those of us who had worked with real stone knew, without too much scrutiny, the difference. The business moved upstate soon after he developed his artificial stone and I soon got away from installing marble, slate and tile facings on fireplaces, floors and walls. I did, recently, need some information about a single project and i called his office. It seems that not only he has gone on to the greatest quarry, but so have both of his sons. i was talking with his grandson who, i understand (from others) is breaking in his son to the biz. Wow. A lot can happen in 39 years.
BTW: off topic::::: the small project I needed to kow about: I have a piece of marble (Tennessee Cragmar) left over from a large job I did in 1963 a little before i turned 39. The stone is 1-3/4 thick by about 24" square. I want to have it slit and polished into two stones so i can make two small tables of some kind for both of my kids. I can get the stone cut across into any number of pieces, but nobody knows of, or has equipment, to split the stone into two slabs. It is a solid piece with no visible seams anywhere. It is already polished on the top and one edge (a leftover from a final change on a very large project). I have even tried to contact the quarry where the stone originated, but they are no longer in biz. The company I got the stone from is long gone. Every one else I have contacted just looks at me like..... Well, let us not delve into that portion of the subject. If anybody just happens to read this, and has an idea of a service who would tackle such a job, would be most grateful for such info. Even if only splitting the stone is possible. I can get it polished (no, i would not think of doing the polishing with my RO 150. i know it has been discussed but I have seen the cloudes of dust from polishing stone when done dry.) I am in south western Connecticut. I would be willing to drive a couple hundred miles to get the job done. Not interested in sending via UPS or other delivery service. Anywhere within a couple hundred miles of D.C. or somewhere close to Cleveland area (Medina). Anywhere in Vermont (I have tried a couple of quarries in Northern VT.)Those are all places I would possibly be visiting within the next 39 years before i get to be 40. The Cleveland area, i only get to once every ten years or so. The last trip, i did not drive. Not so likely again (the driving part).
Got to get going. My day job is turning green. leaves are starting to pop out and forsythia is turning yellow.
Tinker