Any experience with using too much expanding foam?

[casademont]

I have a void I want to fill with no-nonsense fire rated expanding foam.

I filled it per the instructions but went a bit overboard and used too much. I shaved off the excess against the wall with a knife, however the "middle" of the foam is still gelatinous after 12 hours. My guess is no air reached it for the curing process - will it harden over the next few days, or do I need to start again?

Thanks

 

[endecotp]

I thought you were going to recount something like this:

http://www.bbc.co.uk/news/uk-england-nottinghamshire-25319071

In your case, I think you'll be OK if you wait a bit.

 

[geraldthehamster]

If it doesn't go off you could make holes and spray water at it. It cures with moisture (normally the moisture in the air)

 

[Doggit]

It's always best to leave it for a day (or maybe 2 in your case) and then cut the excess off. You'll know better next time.