20:24

Polyurethanes part 1

11:22

Epoxy Resin part 1

11:42

Epoxy Resins part 3

5:00

Alumilite Explains: The difference between epoxy, polyurethane, and resin

3:17

What are polyurethanes?

10:53

Unsaturated Polyester Resins part 1

9:00

Epoxy Resins part 2

3:02

Polyurethane synthesis