Picture of Remove cardboard after 24 hours
Here’s where I messed up. I left the mold on for 30 hours, and the cardboard stuck to the cement like glue. If I’d taken it off at 15–24 hours, it probably would’ve peeled right off.
Here’s where I messed up. I left the mold on for 30 hours, and the cardboard stuck to the cement like glue. If I’d taken it off at 15–24 hours, it probably would’ve peeled right off.