3DLAC is an adhesive spray that forms a good substrate for PLA, co-polyesters and PA filaments, among others.It provides a good surface and ensures a strong adhesion to the buildplatform, so that even materials with an increased risk of warping have a better chance of staying flat. Spray the buildplatform before you put it back into the 3D printer, so that the printer stays clean and 3DLac does not end up on the mechanism.