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Barrow GJSGW Silicone Bending Cord, 1M Length, for 8mm / 10mm / 12mm ID Acrylic, PMMA and PETG Hard Tube
Barrow GJSGW Silicone Bending Cord, 1M Length, for 8mm / 10mm / 12mm ID Acrylic, PMMA and PETG Hard Tube
TL;DR: The GJSGW silicone bending cord is inserted into the bore of acrylic, PMMA or PETG rigid tubing before it is heated with a heat gun, so the inner wall is supported and the tube cannot kink, oval or collapse during a bend. Each cord is 1 meter long, made from heat resistant silica gel rated to 250C...
Common Applications
The GJSGW silicone bending cord is inserted into the bore of acrylic, PMMA or PETG rigid tubing before it is heated with a heat gun, so the inner wall is supported and the tube cannot kink, oval or collapse during a bend. Each cord is 1 meter long, made from heat resistant silica gel rated to 250C and finished in white. Three diameters are offered to match common tubing IDs: GJSGW-8 for 8mm ID, GJSGW-10 for 10mm ID and GJSGW-12 for 12mm ID. After bending, let the tube cool fully before sliding the cord back out. The cord is reusable across many bends as long as it is not nicked or contaminated with debris.
Frequently Asked Questions
Q: Which size of silicone cord do I need?
A: Match the cord to the tube inner diameter, not the outer diameter. GJSGW-8 fits 8mm ID tube (typically 10mm OD), GJSGW-10 fits 10mm ID tube (12mm or 13mm OD), GJSGW-12 fits 12mm ID tube (14mm or 16mm OD).
Q: What is the cord rated for and how is it pulled out?
A: The silicone is rated to 250C, so a normal heat-gun bend will not damage it. After the bend, let the tube cool to room temperature, then pull the cord out from one end while gently twisting; lubricating with a little water makes removal easier.
Q: How long is each cord and is it reusable?
A: Each piece is 1m long. It can be reused across many bends as long as it stays clean and uncut; if it is sliced or covered in residue, replace it so the inner wall of the next bend stays smooth.
Q: Will it work with non-Barrow PETG or acrylic tube?
A: Yes. The cord seats by inner diameter, so any acrylic, PMMA or PETG hard tube with a matching 8mm, 10mm or 12mm bore will accept it.
Q: What is in the box?
A: One 1m length of white silicone bending cord in the selected size (8mm, 10mm or 12mm ID).
