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The foam is a medium curing time foam safe glue. All the locals here use it and its great stuff! 
The factory that makes this also makes the same glues for the western market but at a much higher price. 
We have the local glue here, at a fraction of the price. 
The label reads "Foam Glue which is safe for all Foam Types" 

In our experience the glue should be used for tight joins, and not for gap filling. Its quite thin. 
Gap filling will take much longer to dry.