This solvent glue is a version of Tenax 7R this is slow drying, which allows for a tighter bond plastic-to-plastic.
Blend the following solvents:
6 parts xylene
1 part acetone
3 parts MEK (methyl ethyl ketone)
Note: MEK may be considered a carcinogen in California.
MEK makes a fine adhesive all on its own, but is much too fast (aggressive) for me. The Tenax 7R is a bit slower.
Do NOT use Methylene Chloride as an adhesive. It is very good by is a carcinogen.