Tried coroplast for signs after using foam board forever and it's way better

I made about 20 signs for a local rally last weekend and usually I grab the foam board from the dollar store. But it rained on my first sign and that thing got all soggy and just fell apart. A friend at the print shop said try coroplast, it's that plastic corrugated stuff. Cost me $3 a sheet instead of $1.50, but I stood in a downpour for 2 hours and the sign still looks brand new. Plus I reused the same board for a different event today by flipping it over and taping new paper on top. Has anyone else made the switch and found it worth the extra dollar or so?

3 comments

3 Comments

martin.riley1mo ago

...and that reminded me, I used to try to laminate signs with packing tape once when I was in a pinch. Took forever and looked terrible, like a kid's art project that got left in the rain anyway. Coroplast sounds way more legit for outdoors stuff. I had a buddy who made yard signs for a garage sale out of it and they lasted through a whole week of storms. Might have to grab a sheet just to have around for when my foam board inevitably gets wrecked again.

sean8541mo ago

Coroplast works fine but a week of storms isn't exactly putting it through the ringer. Feels like you're overthinking a sign for a garage sale.

christopherw341mo ago

@sean854 I gotta ask, have you ever actually had a coroplast sign blow apart in a storm? Because I haven't. I feel like you're the one overthinking this. Coroplast is basically plastic cardboard, it's cheap and it works for basic outdoor stuff like garage sales. A week of storms is actually a decent test since real weather often includes wind and rain. Packing tape lamination is a joke, I tried that once too and it peeled off in a day. Coroplast handles moisture way better than foam board without turning into mush. Seems like a no-brainer to me but whatever works for you.