Solvents for Polyurethane

[sreedharkaipa]

Hi,

Can any one tell me the solvents for polyurethane.

Thanks in advance.

 

[Demon3]

Polyurethane is not one chemical type but covers a wide range of polymer and therefore general statements are not so easy to make. Polyurethanes are polar and so you need a polar solvent like MEK, acetone etc. The problem is that usually the polyurethane is cross-linked (like a thermosetting polymer) and it is therefore not possible to dissolve them at all. The best you can do is swell them. So the answer to your question is that you probably cannot dissolve the polyurethane.

 

[25362]

NMP has been sometimes recommended. Visit

http://p2library.nfesc.navy.mil/P2_Opportunity_Handbook/5_10.html

Otherwise, as Demon3 said, usual solvents may soften the polymer for further mechanical removal.