Now where am I gonna get my mobo X-rayed?
Come to think of it, there'll be multiple layers (6 or more?) within the PCB.
I found small tubes:
McMaster has "Extreme-Temperature Polyimide Tubing", and it comes in sizes ranging from .0065" to .1660" OD, and .0050" to .1600 ID.
• Temp. Range: -452° to +752° F
• Color: Amber
• Durometer, Rockwell M: 98 (hard)
• Tensile Strength: 20,000 psi
• Elongation: 50%
• Fittings: Join with Adhesive (see 7733A on page 3127)
This tubing has the widest temperature range of any nonmetallic tubing we offer. It withstands high pressures, plus provides excellent strength, chemical resistance, and abrasion resistance. Tubing is nonflammable and complies with USP Class VI for biocompatibility.
Furnished in a package of five, 1-ft. lengths of tubing.
It's $25.00 per pkg...