Adhesive for Foam

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I use single component polyurethane for majority of my foam projects.. it bonds strongly with expanded and extruded polystyrene (thermocole/ depron),  does not eat/corrode foam, it is light, allows time to  align parts, and cures to a hard finish.

Used many brands, .. but the BEST is what I was able to source  as a sample from Mumbai based Krishna Antioxidants Pvt, Ltd, CRISTOFIX PU 9. .. Thanks to Mr. Adarsh  from Krishna Antioxidants for taking the pain to understand the requirement and helping me with a sample. This product has a long shelf life allowing for better storage and prolonged use, and low viscosity  compared to big brands like Fevicol, Araldite

The way I use it it to decant a portion of it into a large disposable syringe.. use the plunder to ease out the air bubbles, and then cap the nozzle. And to use it, just unplug the nozzle and squeeze  the plunger.. it keeps the air out of the syringe and enhances shelf life by by months.... i wish such a package was available in the market as standard.

A picture of it is as below

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