Is Japanese PE and North American braid the same material?
Yes — both are ultra-high-molecular-weight polyethylene (Dyneema, Spectra, or Asian equivalents). Where they differ is fibre grade, pick count, diameter tolerance, coating and labelling standard, and those are decided by the product spec, not the flag: Japanese brands sell general-grade lines built to the North American spec in North America, and precision x4 lines in Japan. The braid that really is a different material is Dacron (polyester).
The full story
This answer is one piece of a longer lesson — setups, diagrams and the reasoning behind it.
More questions about Lines
- What actually separates a good braid from a cheap one?
- Why does one "20 lb" braid feel twice as thick as another?
- Why is precision PE so much more expensive?
- x4 or x8?
- How do PE numbers work, and what do they convert to?
- Does PE float or sink?
- My braid fuzzed and faded within a month — is it worn out?
- Do I always need a leader on PE?
- Soft or stiff fluorocarbon for the leader?
- Is fluorocarbon really invisible?
- Why does fluorocarbon "feel" low-stretch when it stretches as much as nylon to break?
- Are pink or green fluorocarbons a gimmick?
- What colour PE should I use?
- Is nylon monofilament still useful?
- Why is nylon wrong for finesse rigs?
- What is "fluorocarbon-coated" or "hybrid" line?
- What is ester line?
- What is fused superline (Fireline-type)?
- My fluorocarbon main line coils and jumps off the spool.
- Fluorocarbon keeps breaking at the knot.
- How do I pick pound test?
- How often should I change line?
- Does PE damage rod guides, and why does it sing?
- Which line in wind?
- Which line in cold water?
- What line for Ned, drop shot and shaky head?
- What line for frogs, punching and flipping?
- What line for jerkbaits, crankbaits and swimbaits?
- How long should the leader be, and which knot?