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Helmitin is based in Canada, but has distributors in the U.S. (Michigan and New York State for sure). 3M 77 is an all purpose clear adhesive. It is not a contact adhesive like 3M #08090. 3M 74 is a foam to foam (open cell foam) adhesive. I personally do not like or use 3M adhesives because I have never had good luck with them. I don't think 3M 77 works at all. Spray cans are O.K. for lightweight gluing, but bulk adhesives that don't have to be thin enough to come out of a little aerosol nozzle will always have more holding power in my opinion.
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