500x500mm PEI Spring Sheet Sticker for 3D Printer

500x500mm PEI Spring Sheet Sticker for 3D Printer  Due to the large size of the PEI springs of this product, please note before use: 1. The bottom magnetic film should be completely attached to the aluminum plate (or glass plate) of the hot bed, and then the upper layer of PEI Springs should be adsorbed onto the magnetic film. There may be air holes when pasting the magnetic film. You can use a large needle to puncture a few small holes to expel the gas. 2. If the PEI springs plate is slightly deformed, please use a small clip to tighten it onto the hot bed, as shown in the following figure.   Advtanges:    Never warp& Never rust. Easy to get the first layer even for a new user. Longer service life. Flexible, Removable, stick to magnets base very well. Suits variety of filaments, especially for PLA and ABS. Clean free, just flex the plate a little then take the print-out off. How to use?   Paste the magnetic base (B-side) onto the heat bed plate, and then place