Posted on

Finishing Techniques for Hiding Repair Work

Finishing Techniques for Hiding Repair Work

by Dan Erlewine

from his 1992 GAL Convention lecture

Originally published in American Lutherie #36, 1993 and Big Red Book of American Lutherie, Volume Three, 2004



I grew up looking at the record jackets of my parents’ folk music — Burl Ives, Marais & Miranda (Joseph Marais played a 00-28 herringbone), Josh White with his 00-45. When the Kingston Trio hit around ’59, and I saw those Martins, I just had to have one. I went down to a pawn shop on Michigan Avenue in Detroit and got a Domino, if anyone remembers those. Marc Silber can tell you who made them. I took it home and stripped off the paint so it looked like a Martin and the rest has been a lot of fun.

Here are some tricks I learned after I applied for my first job as a luthier at Herb David’s Guitar Studio in 1962. (There’s more on Herb David in American Lutherie #26; more on Dan’s career in AL#25.) I was seventeen and out of high school. I had been hacking stuff in my dad’s workshop, but I wanted to learn more so I’d go over to Herb’s and hang around. I worked at McDonald’s, and I’d take him big bags of free cheeseburgers that I had made myself. They were triple-deckers, which they didn’t make then. One day Herb showed me a Gibson SJ with rosewood back and sides (now I realize just how rare that guitar was!). It had a big fist-sized hole punched through it. Herb said, “Fix this, kid.”

Become A Member to Continue Reading This Article

This article is part of the Articles Online featured on our website for Guild members. To view this and other web articles, join the Guild of American Luthiers. For details, visit the membership page.

MEMBERS: login for access or contact us to setup your account.

Posted on

Sealing with Shellac and Varnishing Rosewood

Sealing with Shellac and Varnishing Rosewood

by Neil Hebert

Originally published in Guild of American Luthiers Data Sheet #269, 1984 and Big Red Book of American Lutherie, Volume One, 2000



I have been using oil varnish on my instruments for years and have always found the finishing stages to be long and tedious. Still, I find the results of a good rubbed varnish job to be superior to lacquer; it gives the nicest “feel” to the guitar as well as showing the wood to the best advantage.

One of the most ticklish problems in my experience is the seal coat of shellac, especially the first coat. The seal coat must be applied evenly in order to maintain consistent color on rosewood. The resins in the wood tend to wash out over the surface, which can result in irregular staining. I have tried three methods for applying this coat:

Become A Member to Continue Reading This Article

This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page.

If you are already a member, login for access or contact us to setup your account.
Posted on

Letter: Clarification of DVD review in AL#97

Letter: Clarification of DVD review in AL#97

by Ronald Louis Fernández

Originally published in American Lutherie #99, 2009



Greetings,

I thank Tom Harper for his review of my DVD, French Polishing for Guitarmakers 2.0 in AL#97. I wish to make a few clarifications.

My family’s Spanish guitar business in the 1960s never involved Manuel Rodríguez. Rather, we had dealings with Miguel Rodríguez of Cordoba as well as Manuel de la Chica (Granada), Arcángel Fernández, Marcelino Barbero, Felix Manzanero, Hernández y Aguado, Juan Alvarez, and José Ramírez III. My article “Miguel Rodríguez: Some Notes on his Family Tree and Correcting the Historical Record” in AL#68 (Winter 2001) tells about the Miguel Rodríguez family and mentions my dealing with them. In a footnote of that article, I specifically mention the difference between Miguel Rodríguez of Cordoba and Manuel Rodríguez of Madrid.

Become A Member to Continue Reading This Article

This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page.

If you are already a member, login for access or contact us to setup your account.
Posted on

Seedlac

Seedlac

by Nicholas Von Robison

Originally published in Guild of American Luthiers Data Sheet #150, 1980 and Big Red Book of American Lutherie Volume One, 2000



Seedlac resin, when combined with alcohol, gives a magnificent spirit varnish suitable for spraying or French polishing with qualities far superior to its better known cousin shellac. It’s more transparent, faster drying, harder, and more resistant to scuffing and moisture. The latter quality is of particular value as sweaty hands can play havoc on a shellac-based finish on a musical instrument. With all this going for it, it is not well known or used by luthiers to a great extent. The primary reason is that the major paint and varnish manufacturers buy most of the crop for their own needs, leaving little for the small-scale importers.

About 60% of the resin is collected from an area between Calcutta and Central India with lesser amounts coming from Myanmar, Thailand, and Laos. There is a distinct difference in the resin color from different areas. The lac west of Calcutta is yellow or orange, east and south of Calcutta it is red, a pale red in Assam, and a dark red in Thailand. The resin comes from various indigenous trees, primarily kusam (Scheichera trijuga) which has the best color (pale yellow) and quality, but others such as pala (Wrightia tomentosa), ber (Berrya amomilla), and ghont (Bursera serrata). Two crops occur each year, summer and winter, and they revolve around the life cycle of a scale-like insect (Laccifer lacca) which infests the host trees. This small (about the size of an apple seed) red critter was cultivated as early as 80 A.D. for the purplish dye it contains. But not until 1580, in the records of Akbar the Great, do we find any mention of seedlac resin for varnish making.

Become A Member to Continue Reading This Article

This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page.

If you are already a member, login for access or contact us to setup your account.
Posted on

Honest Ron’s Lacquer Finishing Technique

Honest Ron’s Lacquer Finishing Technique

by Ron Lira

Originally published in Guild of American Luthiers Data Sheets #262, 1983 and Big Red Book of American Lutherie, Volume One, 2000


Tools and Materials:
High quality spray gun — Binks 69
Respirator and rubber gloves
1/2 h.p. or larger compressor
2 water traps in air line — Amflo 1060
Air regulator for 40 lbs.–50 lbs. static — Binks
Hot plate with water tub
Clean place to spray
Air or electric buffer and pads
     Rodac 717 and Schlegel 875C pads
120-, 220-, 320-, 600-grit sandpaper
     3M Tri-M-ite Fre-cut and wet or dry
Behlen Pore-o-Pac paste wood filler
Sherwin Williams T75C40 Finish lacquer
Sherwin Williams T67F3 Vinyl sanding sealer
Sherwin Williams R7K120 Thinner
Sherwin Williams R7K27 Retarder
Sherwin Williams D1T271 Rubbing compound
Sherwin Williams D1T13 Polishing compound
3-M-05990 Imperial Hand glaze

Become A Member to Continue Reading This Article

This article is part of our premium web content offered to Guild members. To view this and other web articles, join the Guild of American Luthiers. Members also receive 4 annual issues of American Lutherie and get discounts on products. For details, visit the membership page.

If you are already a member, login for access or contact us to setup your account.