I am looking for a suitable organic solvent for dissolving dried-on polyurethane adhesive on a substrate of nylon/butyl/polyester. Acetone is ruled out because it attacks polyester (PET) and Toluene is ruled out because it attacks butyl rubber. From what I can tell, nylon (PA) seems to resist everything!
It’s been a while since I took organic chemistry. Does anyone know of an organic solvent that fulfills the following mandatory properties at standard temperature & pressure:
- It MUST dissolve polyurethane (PU)
- It must NOT dissolve nylon (PA)
- It must NOT dissolve polyester (PET)
- It must NOT dissolve butyl rubber