介绍了高填充性聚氨酯二道底漆的研制过程，并在实际应用中与同类产品进行了比较。
The title paper introduces the development of polyurethane primer surfacer with high filling power and compares with the likes in practical application.
分别对材料选择、底材处理、底着色、涂一道底漆、涂二道底漆、面修色、涂面漆工艺进行了处理。
The coating procedure thereof is described in terms of the material selection, substrate treatment, stain primer, binding primer, surface primer, finishing and et al.
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