barniz

n. varnish, veneer

= varnish, veneer, polish.
Ex: Linseed oil reduced by boiling, with a proportion of resin, continued to be the main constituent of the varnish, and lampblack was still used for the colouring of black ink.
Ex: Sexism is typically rationalized by & masked beneath an intellectual veneer.
Ex: Oils extracted from these dried seeds are used for the preparation of resin, oil paints, polish, wood varnish and skin cream.
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* barniz para la madera = wood varnish.
* barniz para tratamiento de la madera = wood preservative.