Michael Dresdner

straight talk about wood finishing

Archive for February, 2009

Finishing on the Lathe

Thursday, February 19th, 2009

In many ways, finishing on the lathe is easier than finishing in the flat, because the motor turns the work for you. Besides, most turned projects get gentle treatment and do not require very durable finishes, so you can choose your finish based on appearance and ease of application rather than toughness. But the bottom [...]

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How and why does shellac go bad?

Monday, February 16th, 2009

Shellac degrades. As soon as shellac comes in contact with alcohol, which is its solvent, it begins a degradation process called esterification in which the shellac resins convert to shellac esters. The more esters are created, the slower the shellac dries and the softer and more prone to water spotting the final film is. This [...]

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