I seem to remember years ago that there was a spray adhesive available that you could use to join 2 pieces of talalay latex (or fix rips/tears).  Anyone know where to get some of this stuff??  Thanks!

flamanar

Fixing rips makes sense.


But why glue layers together? Less flexible that way...

I believe he's referring to "edge gluing" rather than gluing layers together.

right.  I want to glue the edges together to make it longer.  Any glue recomendations?

Go to McMaster-Carr and search for "aerosol adhesives".  Or if you have one of their catalogs, look on page 3310

I went through this once before, and spoke to people in the industry. Best which yu can access is 3M Foamfast 74. Restricted in many states, but can order from speciality catalogs (I paid around $24 shipped). Also saw for sale at a John Deere dealership. It's heavy duty stuff, and should only be used with great ventilation. 3M also makes #77, consumer grade, found at HD. Might work OK for tears, etc..