This is a continuation of part one. Part one was general and part two is more specific. A word about mixing epoxies. Epoxies are very sensitive to mix ratios. Get to much hardener and the epoxy will be weaker although more flexible. Get to little hardener and the epoxy will be brittle. We are only talking 5% here. The epoxy pumps are ok and easy but you are never sure. I use small paper cups or for very small jobs I use equine syringes available at Tractor Supply. I have settled on Raka brand epoxy www.raka.com as my all time favorite. The reasons are that I am not very sensitive to the chemicals they use, raka is cheap, the company is top notch and I can adjust their resins to fit any temperature or moisture level I am working with. The downside of Raka is that the resins are very slow to reach hardness. More than once I have gotten in a hurry and ruined my work. If you are going to use Raka please don't be in a hurry. Think days not hours in many cases. Apply it and find something else to do. If you are in a big fat hurry use WEST or East. 5 minute epoxies are unsuitable for marine use. They are weak and very brittle. Epoxy will cure at any temperature if you give it enough time. At 32 degrees Raka table top resin takes about a month. That said there are many combinations. For all around glass lamination work I use Raka 127 resin and 350 hardener. Its idiot proof and will give a perfect job every time no matter what the moisture level is. The down side is that its slow even at 70 degrees and will run on vertical surfaces if you get to much resin on the surface. Vertical surfaces are ok if you roll out the layers enough. For hot sun work at 95 degrees and high humidity use the Raka table to resins for work. Thin it with thinner if its to thick for your work. You have plenty of time to work at these temps with this resin. Its way slow say 40 minutes. Table top resin is cheap but not as waterproof as the other mixes. Its still as waterproof as polyester resins so waterproof is a matter of degree. Its great for anything above the waterline. If you are working in the winter use the 127 resin and the 425 hardener. Wear more protection with the 425 hardener as it is an Amine. This resin works fine at temperatures down to near freezing. Its not clear and it blushes so you will have to sand and wash before paint. The only touchy work you may have to do is bottom barrier coating. For this use the 900 resin and the 350 or 425 hardener. Add powdered aluminum (WEST secret additive) to increase water resistance. I thin it slightly with acetone and roll it out well in warm weather. You don't have much time to work so work in small batches with more than one pan. The idea is the be able to get a thin even coat that will not sag a run. Acetone will flash off very quickly. Acetone is generally not a very good thinner for Epoxy as it tends to blush the surface and may lift layers of the substrate. Use it very sparingly at no more than 10%. Part three to follow