The Problem Of Drying Times

Most of the materials you apply to furniture during the construction and finishing are liquid or semi-liquid, and need to dry. Manufacturers of these products, from glues and fillers to stains and varnishes, indicate the average drying times on their labels.

The problem is, there is no such thing as an average drying time. Drying depends heavily on temperature and humidity, and these vary radically from place to place and time to time. Therefore, use any drying times strictly as a general indication, and not as the gospel truth.

We have seen varnishes which dried completely in 12 hours at 77 degrees, and required as long as 30 hours when the temperature was below 70 degrees. That gives you some idea of the sensitivity of finishing materials to climatic conditions—a variation of less than 10 degrees in temperature can increase drying time by a factor of 2'/= or 3. High humidity usually has an even greater effect.

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Wood Working for Amateur Craftsman

Wood Working for Amateur Craftsman

THIS book is one of the series of Handbooks on industrial subjects being published by the Popular Mechanics Company. Like Popular Mechanics Magazine, and like the other books in this series, it is written so you can understand it. The purpose of Popular Mechanics Handbooks is to supply a growing demand for high-class, up-to-date and accurate text-books, suitable for home study as well as for class use, on all mechanical subjects. The textand illustrations, in each instance, have been prepared expressly for this series by well known experts, and revised by the editor of Popular Mechanics.

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