basting solvent

https://doi.org/10.1351/goldbook.09457
Solvent in which a resist or additional thin-film component (typically a BARC) is dissolved for the coating process.
Source:
PAC, 2020, 92, 1861. 'Terminology of polymers in advanced lithography (IUPAC Recommendations 2020)' on page 1868 (https://doi.org/10.1515/pac-2018-1215)