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Looking to incorporate lettering into steel bicycle frame using media blasting

I'm trying to figure out the best way to label the steel tubing on a bicycle frame so that the lettering and logos are obvious once powdercoated clear. I would like the lettering to actually be part of the tubing finish (not use decals) so I was considering media blasting over a template in order to create a difference in finish between the tubing and the lettering. Recommendations on a procedure? Recommendations on the type of material to use for the template? Recommendations on a particular type of media blast for chrome-oly bicycle tubing?

Ryan Evans
Hobbyist - Gold Hill, OR, USA
2007

There are seveal alternatives depending on the desired durability and cost. Throw away templates may be made out of adhesive vinyl with transfer backing. Hardened steel might also work but it may present some problems with positioning and sticking to the surface which is important to avoid underblast. Best option due to its durability, easiness of positioning and repeatability would be a nickel electroformed mask. It would fit perfectly to your surface and not move time after time. That's what most manufacturers use to selectively paint on irregular and intricate surfaces of high volume items.

Guillermo Marrufo
Monterrey, NL, Mexico
2007

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Ryan,
You want to sandblast the info onto the frame. Actually, the more recent term is sandcarving but it still involves a rubberized mask with an adhesive back that has the design/words cut out. The mask is then applied to the frame whereever you want the info. The masked area is then blasted with a material such as aluminum oxide or garnet.

Stephen Mann
- Palm Springs, California, USA
2007

Find a local sign maker that makes sandblasted signs. There should be several in your area. Tell him what you want to do and he'll generate a perfect, computer cut, adhesive mask made of sandblast quality vinyl. He can produce a mask with any font, size, or design that you want. If you ask, he will give you instructions for applying the mask.

Chris Owen
- MO
2007