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Question:

Is there a glue that can seal sheets of plastic together?

Is there a glue that can seal/bond 2 thin (about 30 microns or less) sheets of plastic together, the same EXACT way that they would seal/bond if the same 2 sheets were heat sealed? (kinda like those food vacuum sealers)

Answer:

I have the same problem. I have tried melting some of the plastic and pressing it between the sheets. This only seemed to melts the sheets also. I have used Gorrilla Glue, Silicone, Super Glue and Epoxy and have had no luck. Double sided tap sorta worked but it takes a ton of it. So far the best thing I have found is just using Duct tape. It's ugly and falls off in the heat of the summer but does work temporarily. I will definitely buy an iron and try that. That seems like the best idea yet. I did visit an adhessive manufacturers website and they say there is nothing invented yet that bonds sheeting together permanently. I find this hard to believe. I have used a vacumme sealer for freezer bags and it works wonderfully on really thin plastic but the thicker sheeting I need and it has no affect on that.
It depends on the following: Your definition of EXACT....heat seal actually remelts the plastics in the area of the seal making it as if it were one continuous piece For some plastics, like PVC, you can solvent bond two pieces together, where basically a very powerful solvent dissolves the immediate area of the two pieces and they are bonded when the solvent evaporates It will very substantially from plastic to plastic. If by EXACT you mean the same physical properties, there are specialty adhesives that may meet that requirement...again it varies substantially from plastic to plastic

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