Initial heating of the phenol and formaldehyde (in the presence of an acid or base to get the reaction going) produced a shellac-like liquid good for coating surfaces like a varnish.

开始加热，酚和甲醛(需有酸或碱促使其反应进行)便产生了像紫胶样的液体，能像清漆一样涂于物体表面。

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To do this, you will need to strip off any varnish, shellac, paint, etcetera , that is on it.

为此， 您将需要带过任何的研磨剂，虫胶，油漆，等等，这是它。

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If you use colour stain, can say take alcohol solution dye 6 points, alcohol 70 points and shellac varnish 24 points, mixed evenly, with manual brush or spraying dyeing.

若采用酒色染色，可称取醇溶液染料6分、酒精70分及虫胶清漆24分，混合均匀后，用手工刷涂或喷涂染色。

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Much of the book, which dates from the 10th century AD, was rendered illegible in the late 19th century by misguided academics who used shellac to varnish it.

ECONOMIST: Monitor