The present paper systematically introduced the synthetic process, properties and test method of the speciality unsaturated polyester (UP) , which was a main component used for making polyester putty.

系统介绍了生产原子灰专用不饱和聚酯的研制过程、产品性能及测定方法。

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Unsaturated polyester (UP) is a major resin in these processes due to their low cost and good performance.

不饱和树脂以其良好的工艺性能和低成本的优势在这些工艺中引起了关注。

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Fiberglass stitched mat is used in unsaturated polyester resin strenthen, primarily in pultrusion, RTM, filament winding and hand lay-up processed.

并适用于拉挤成型、注射成型（RTM）、缠绕成型、手糊成型等玻璃钢成型工艺。

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