AboutH Carl Trimble III Expertise One of a kind custom design stained glass as well as other glass art methods and the restoration of stained glass. Inquiries regarding leaded, beveled, etched sand carved, and fused glass techniques are invited. Other methods, technical questions,history of the art and supply source inquiries also welcome. Information on the pro's and con's of protective glazing of stained glass windows. Visit www.TrimbleStudios.com for more complete information.
Experience Over forty years experience in a wide range of techniques that include "stained glass", wood working and metal fabrication. Have worked from my own full service studio since 1977. Many major residential, commercial and religious installations from Charlottesville, Virginia and Atlanta, Georgia to San Diego California as well as much of the State of Texas
Organizations Professional Affiliate,Certified Trainer, and Preferred Provider for the American Institute of Architects, AIA, Dallas, Texas. I have served on the Board of Directors of both the Texas Fine Arts Association and the Texas Visual Arts Association
Education/Credentials Bachelor of Fine Arts, The University of Texas, Tyler. Master of Fine Arts, The University of North Texas, Denton. Just a few hours short of a Bachelor of Business Administration degree from the University of Texas at Austin.
Awards and Honors Many first place and best of show awards in both stained glass and fine arts competitions. Steady commission work for the past ten years has obviated any recent competitive activity.
Past/Present Clients Most recent major commissions are for American Airlines CR Smith Museum; JFK Airport Terminal 8 stained glass; TXU Energy Plaza Thor stained glass. The Mansion at Turtle Creek, Dallas and and St. John the Apostle Catholic Church in Terrell, Texas
Is there a way to correct glass sandblasting mistake without polishing it? Our concern it is that if we use a polish method it might create a dip in the glass.
Thank you.
Answer Unfortunately, you will have to polish the mistake. The abrasion of the sandblasting cuts minute depressions in the glass which will have to be smoothed out. This will result in a dip in the glass. The depth of the dip will depend on how deep the abrasion went into the glass. If you are polishing the mistake, try to polish the glass in such a way that it covers a wider area than the mistake. Taper the polishing to a lesser degree as you move away from the mistake area.
In some sense, this is like painting a scratch in a car's finish. The process is called "feathering." The area of the scratch is ground down to bare metal. The area surrounding the bare metal is ground away so that you see successive layers of bare metal, primer, and finally, a light abrasion of the finish layer of paint.
When repainting, new primer is applied to all of the abraded area and, finally, the finish coat of paint is sprayed on. The finish coat is then polished so as to appear even with the old paint. It is called "color sanding."
The analogies above are more or less approximate to the job you will need to accomplish in solving your overspray mistake.
Going back to the cause of the overspray, "What were you using as a resist? Was the glass cleaned properly before you applied the resist? Were there air bubbles that had not been resolved? Was the air pressure too high? Were you using a pressure pot or a siphon system?
There is a lot to consider in sandblasting. Attention needs to be paid to any number of issues before you turn on your air compressor.
Think things through fully before you begin so as to avoid the myriad of problems that can occur.
I know this goes beyond your question, but solving problems before they occur is the best practice.
Good luck!
Carl Trimble
Trimble Studios
www.trimblestudios.com
