You want to make "ABS GOO" to repair/glue ABS with. ABS Goo is easily made by dissolving ABS shavings in MEK. MEK is nasty stuff. Use with plenty of ventilation. I installed ABS tanks because I know how to repair ABS thanks to owning a vintage Apache popup which had walls made from ABS. I bought my MEK from Home Depot (paint section) and I got my ABS by shaving ABS tent stakes (gave me yellow ABS Goo) bought at WalMart and shaving ABS from ABS plumbing pipe (gave me black ABS Goo) bought at Home Depot. I simply put the shavings in a short mason jar, add MEK and seal the metal lid tightly. Let stand overnight and stir the next morning. Might need to add more MEK or shavings. If it dries out, add more MEK. If too thin, add more shavings or leave the lid off so the MEK evaporates. Apply with a putty knife.
