How does the UP Box Perf Board work?
UP! Perf boards are designed to reduce warping, preventing the lifting of the bottom surface of your 3D build project from the build platform. At the start of the build process plastic seeps into the holes of the Perf board resulting in a strong bond between the build project and the platform. When your print has finished remove the perf board from the printer. Use the scraper to remove the entire printed object from the perfboard. Then break away the support material.
How to clean your UPBOX perf Board
To clean your Perf Board simply scrape both sides free of plastic waste using the scraper provided when your bought your UPBox 3D printer. There is no need to remove the plastic from the holes. If adhesion is getting less then you could try brushing some acetone over the perfboard.