Unsaturated polyester - use

All kinds of unsaturated polyesters are uncured from low viscosity to high viscosity. After adding various additives, they are heat-cured. After curing, they become rigid or elastic plastics, which can be transparent or opaque. The main use of unsaturated polyester is glass fiber reinforced glass fiber reinforced plastic, which is one of the main varieties in reinforced plastics. The molding method is as follows: a hand paste method is to spray a layer of resin on a mold coated with a release agent, and then lay a layer of reinforcing material, and then discharge the bubble to repeat the operation to the required thickness, and finally solidify the mold release. 2 Lamination method is a method in which a glass cloth is impregnated with an unsaturated polyester and then laminated and hot pressed. It has excellent tensile strength and impact toughness, low relative density, good thermal and electrical insulation properties, good light transmission, weather resistance, acid resistance and sound insulation. The price is much cheaper than epoxy fiberglass, so it is widely used. Used in the manufacture of radar radomes, aircraft parts, automotive shells, small boats, transparent corrugated board and other building materials, sanitary wares and chemical equipment and pipelines.

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