So, it is similar to a brazing process. It sticks great to polypropylene and TPO. Each rod is 12 in (30 cm) long and is 3/8 in (4.76 mm) wide and 1/16 in (1.6 mm) thick. Polyvance R10-04-03-BK Welding Rod, 12 in L x 3/8 in W x 1/16 in THK, Flat, FiberFlex, Black.
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