Epoxy and polyurethane can be mixed. An epoxy and polyurethane coating system is often used in the marine industry to protect against the weather.
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Some good rated epoxy paints would be a two part solvent-based such as Behr. Quikrete and Rust-Oleum. These epoxy paints can be obtain at Home Depot, Lowes or a similar store.
Polyurethane isn't epoxy, but they're both resins. They're also both reaction copolymers--you get either one through a chemical reaction between two components. The difference is, epoxy contains epoxide and polyamine; polyurethane contains a complex alcohol (either a "diol" or a "polyol") plus an isocyanate.
Yes. Because a chemical bond is no longer possible because the epoxy coating has dried, a mechanical bond is required. This merely means that the cured epoxy must be lightly sanded before applying the next layer: the first coat should have a matt, nearly white finish.
Super Loc is an epoxy primer produced by Dunn-Edwards Paints. The product contains several epoxy and polyamine resins that readily adhere to various materials, such as bricks or poured concrete.
Polyurethane is an extra-tough material found in paints which also has excellent electrical insulating properties.
With modern paints it can , but still not a good idea as it does not get sufficient 'grip' and will eventually separate.
Epoxy thinners is the only thing you can use to thin down Epoxy paints however for cleaning other thinners such as general purpose and gunwash should do the job aswell.
I wouldn't, it will not stick well.
Yes, you can,and it's very good for that use. However if the concrete is bare, you must apply an epoxy primer before the polyurethane finish.
Epoxy glues would be best.