After nearly 60 years, old celluloid parts start to crumble. The pickup risers on a '55 Gretsch are rotting away, and Dan Erlewine builds new replacements from a sheet of tortoiseshell pickguard plastic.
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In this Trade Secrets video:

• Stinky, "off-gassing" celluloid destroys metal, too!
• Laminating acrylic material to fabricate a 3D shaped part.
• Hot Tip! The advantage of bending the plastic while gluing.
• Quick way to sand and buff acrylic to a high gloss.