Some polyurethane resin coating contains more free TDI, brushed in besmear in the process of volatile, will lead to latex paint of yellow.

有的聚氨酯树脂涂料中含较多的游离tdi，在涂刷挥发过程中，将会导致乳胶涂料泛黄。

youdao

This is because the primer coating is too wide can lead to drying of the film too thin, which in turn weaken its main properties.

这是因为底漆涂布得太广也会导致干燥后的漆膜过薄，从而反过来削弱它的主要性能。

youdao

Radial lead coil, single or multi-layer winding on ferrite core, coating by epoxy resin. Products can be taped or packed in viny bangs.

径向引线固定电感器，在铁氧体磁芯上单层或多层绕线，环氧树造脂包封，包装形式可以编带也可袋装。

youdao