WHTCHSU 1 Pcs Glue and Residue Eraser Rubber Cement Cleaner for Removing Adhesive and Residues from Paper Plastic and More

To help seat the tire, after putting the tire on the rim, spray the some soapy water on the tire bead - I was able to seat a road tire with a floor pump. As for removing old sealant, I have read that this works. I have not tried it so can't say for sure if it does or not. https://www.amazon.com/dp/B0DGGBP1JL?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1