flat varnish

flat varnish, matte varnish

A varnish which dries either without gloss or with a low gloss.
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To prevent rusting of exposed metal, give the entire snake a coat of flat varnish. For eyes use drops of a suitable color nail polish.
9 Finally, spray the whole piece with clear, flat varnish. If the piece is to be used outdoors, you will need to use a more heavy duty varnish, such as Japlac clear gloss.