There are many finishes available, from paints and varnishes to powder coatings ... costing $60 to $70 per gallon. Epoxy resin coatings from the best-known brands can cost up to $100 per gallon.

Epoxy resin is useful stuff ... There’s just something about the silky, liquid look of a blob of cured black epoxy. [Rupert] harvested his toner powder from a depleted printer cartridge ...