What To Do With Campaign Signs After the Election? Make Bike Fenders!

coroplast fenders

Coroplast fenders photo courtesy of Kent Peterson

I discovered this nifty trick via the Ride Happy Cycles blog and her post about some very colorful handmade corrugated plastic fenders she came across. You can read more about them here.  Her blog post  garnered a response from Kent Peterson of  Kent’s Bikes Blog. Turns out he had written up some detailed instructions on how to make such fenders a few years ago.  And believe it or not, it seems that the best material for these fenders is campaign signs!!! I’ll let Kent explain:

Around here (the Puget Sound area) most of the roadside political campaign signs are 24 inches long by 18 inches high and made from a material called coroplast. I wait until a day or two after an election and then go out and harvest the leftover signs and recycle them into bicycle fenders. While these fenders may not look very fancy, they work real well and are very light and inexpensive. This brief report should give you all the information you need to make your own set of fenders.

Coroplast is a plastic material similar in construction to the corrugated cardboard used in making cardboard boxes. Because it’s plastic, it’s weatherproof, light and extremely tough. It’s easy to cut and work with once you learn a few of the basic tricks. Coroplast has a “grain” formed by the internal corrugated flutes. It is easy to cut if you cut along the flutes and if you want to bend it into smooth curves make sure you curve along the flutes. You want to make sure that the sign you get has the flutes running parallel to the long (24 inch) edge.

You can continuing reading through his detailed instructions on the handy Google doc he put together.    If you do make some of these fenders,  please send me a photo!

corrugated plastic fenders

Corrugated plastic fenders photo courtesy of Marcy (RideHappyCycles.com)


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