Condensation polymers from cardanol, formaldehyde and amine (PCX) are systhesized by copolycondensation, then are reacted with epoxy resin to form coating films.

用共缩聚的方法，由腰果酚、甲醛和多元胺合成腰果酚缩醛胺聚合物。

youdao

In industry, diamond can form a tough, non-corrosive coating for tools.

在工业中，钻石可以制成工具上的一层坚硬且耐腐蚀的涂层。

《柯林斯英汉双解大词典》

While disposable cups are made predominantly of cardboard (about 95% by weight), they also contain about 5% polyethylene in the form of a thin coating inside the cup.

便携杯子虽主要由硬纸板构成（重量占比达到约95%），但还是包含了约5%的聚乙烯（polyethylene）以很薄的涂层形式附着在杯子内侧。

youdao

The work was inspired by tears, which, when grouped together, form a coating over our eyes with multiple functions.

BBC: New material can halt runny liquids on demand