底漆

On many modern wooden boats, epoxy coatings will have been used as a base for varnishing.

很多现代的木船将采用环氧涂层作底漆。

Cars were covered with clear-coat finish at the factory to protect the underlying paint from fading.

工厂给汽车上了透明罩漆，以防底漆褪色。

The bare metal was sprayed with several coats of primer.

裸露的金属上被喷上了几层底漆。

You must prime the wood before you paint it.

油漆这木制东西前，你得先在上面涂上底漆。

Use this paint as a base before you varnish.

在你上清漆前，先用这种漆作为底漆。