panel adhesive in colder weather ?

[blazer2007]

I usually do any work on my trucks in the fall from Oct-March and have to do the floor on my 1980 truck. I,ve done it with a welder before but was thinking of trying adhesive. IT wouldn,t be 21 C. at that time, maybe but I was wondering if the adhesive would work if I left it clamped longer and used a heat gun. Shop is not heated. I did read that at 10 C. it would take 7 days to cure.Not a show truck or nothing. If not back to welding.