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HELLO! Long time no posts.
Interested in Hard Panniers? Is Coroplast too light? Need something heavier without resorting to Acrylic Butadiene??
I went to the plastic dealer looking for 4mm Coroplast, but they didn’t have any. They said $100 minimum order, and they don’t take cash…
Bubble-X Polypropylene Honeycomb is what they sold me!
I got two 48”x96” boards, 5mm thickness?
You need a router to rabbet cut a groove before you can bend it.?
A bit of a weight penalty compared to Coroplast, but if your bike has a motor it won’t be a problem. Or you can make a smaller box.
you don’t need to cut a groove in Coroplast in order to bend it, that’s the key difference.
Honeycomb has the same flexural modulus vertically and horizontally, whereas Coroplast is stronger in one orientation.
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AviationMetalSmith