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Questions: Brushing Varnish

Questions: Brushing Varnish

by Wade Lowe

Originally published in American Lutherie #70, 2002 and Big Red Book of American Lutherie Volume Six, 2013



Ray Thompson of Kennett Square, Pennsylvania asks:

What would you recommend for a good brushing varnish, either oil-based or spirit-based for guitar? Or do you know of recent written material on this? I have tried Behlen’s 4-Hour Rubbing Varnish. It did not seem to dry hard enough on test pieces. I tried the French polish (shellac) but now I’d like to try a brushing varnish for its ease of application as compared to spraying or French polishing.

I have thought of trying to brush shellac. I read that if you do very thin 10% coats it can work. Then just fad level and spirit it off after build up. But that might be as tricky as French polish. I want a finish I can brush on, let dry a prescribed amount of time, steel wool it back; and repeat as necessary.

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Review: Guitar Finishing Step-by-Step by Dan Erlewine and Don MacRostie

Review: Guitar Finishing Step-by-Step by Dan Erlewine and Don MacRostie

Reviewed by John Calkin

Originally published in American Lutherie #61, 2000 and Big Red Book of American Lutherie Volume Six, 2013



Guitar Finishing Step-by-Step
Dan Erlewine and Don MacRostie
Stewart-MacDonald, 1998
ISBN 978-0964475236

The death of lacquer as an available finish was pronounced at least ten years ago. Because lacquer was so environmentally hazardous, the various levels of government were supposed to restrict its use to the point that manufacturers would find no profit in producing the stuff. Well, folks, it hasn’t happened, and lacquer remains the premier finish for most string instruments. If you’ve yet to have your first heady whiff of lacquer fumes, you should study Guitar Finishing Step-By-Step before you dive in. If your plans include the re-creation of the many factory guitar finishes, you should have this book regardless of your experience level.

The book has a strange flow to it, though. There are only three stages of finish work — wood prep, finish application, and rubout. However, the plethora of tools and materials available today leave too naïve an approach open to confusion and failure. To avoid this, Erlewine and MacRostie rely on detailed description, technical information, and a degree of repetition to cover all the bases thoroughly. For instance, a description of power sanders is followed twenty pages later by a description of power sanding. Both sections include important and overlapping information. Readers who skip about in order to get on with their finish work will find themselves handicapped.

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Review: Sunburst Finishing by Dan Erlewine and Don MacRostie

Review: Sunburst Finishing by Dan Erlewine and Don MacRostie

Reviewed by John Calkin

Originally published in American Lutherie #63, 2000 and Big Red Book of American Lutherie Volume Six, 2013



Video: Sunburst Finishing
Dan Erlewine and Don MacRostie
Stewart-MacDonald, 1999

Sunburst Finishing is sort of a strange video in that it’s intended to replace Stew-Mac’s out-of-date Color Finishing, yet it doesn’t cover nearly as much territory as the older film. So be it. It only costs half as much as the old tape, and the information included may be as much as you need.

The only guitar involved is an archtop Guild with a maple face. Some repair work has been done to the top before the tape begins, and the finish has also been removed. The job at hand is to match the sunburst on the top to that of the rest of the guitar. A yellow toner has to be mixed for the maple, then a brown candy is blended to match the color of the burst. The techniques of precision blending are the heart of the video, an operation at which MacRostie is a master. Chip sheets and blending boards are made which can be stashed away for future reference. The work is also referenced to the recipes in MacRostie and Erlewine’s new book, Guitar Finishing Step-By-Step (p. 530), which is a useful touch. There is no wood prep involved in the job (as far as the camera is concerned), as this video is intended to work in concert with Spray Finishing Basics, another video by the same dynamic duo. Touchups are necessary when the binding is scraped after the color coats, and the airbrush work is caught on tape. A close look at MacRostie’s scraping tools is a helpful segment.

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Review: Spray Finishing Basics by Dan Erlewine and Don MacRostie

Review: Spray Finishing Basics by Dan Erlewine and Don MacRostie

Reviewed by John Calkin

Originally published in American Lutherie #61, 2000 and Big Red Book of American Lutherie Volume Six, 2013



Video: Spray Finishing Basics
Dan Erlewine and Don MacRostie
Stewart-MacDonald, 1999

This video is broken into two distinct segments, each of which covers the complete finishing process in its own manner. In the first portion, Dan Erlewine finishes an ash strat-style body in a Fender blonde color. This is a white finish that allows the wood grain to show through. In furniture work it’s usually called a pickled finish. In the second segment, Don MacRostie paints a bound alder tele-style body pink on the face and black on the back and sides. All colors are mixed in the shop from a clear lacquer base, and a good amount of time is expended demonstrating the process. Alder and ash require different prep treatments, and this is also a feature of the tape. Builders of acoustic guitars shouldn’t feel left out, since the color coats are followed by clear finish, and working with clear is the same, regardless of whether it goes over sealed wood or colored lacquer. The idea was to pack as much information into the allotted time as possible.

The application methods used by the two men differed drastically. The three basic steps of wood finishing are wood prep, finish application, and sanding/buffing. It often baffles beginners to find out that if any step is less important than the others it’s the second, the application. The acquisition of a compressor and a quality spray gun hardly guarantees a good finish, but a talented luthier can do a good job with the unlikeliest gear. To prove it, Erlewine finishes his guitar entirely with aerosols.

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Questions: Violin refinish

Questions: Violin refinish

by Michael Darnton

Originally published in American Lutherie #103, 2010



Winthrop Eastman from the Internet asks:

I have a violin that belonged to my great grandmother. It has been in an attic for many years. We sold the house and I rescued the old violin. I would like to restore or refinish it, but I don’t want to damage its sound quality in any way. Can you direct me to a book or literature on how to restore such stringed instruments. I am quite handy at restoring furniture but have never tackled a violin. There is a dusty old label inside the violin that says “Carl Friedrich Pfretzschner 1773.”

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