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a substrate that is not porous. IE has no pores. But more importantly it is impervious to water or air. In a material this would mean that an adhesive would need to either melt/weld or create a bond between it and the substrate. A water based glue for example would want to penetrate the surface of a substrate to create a surface it can bond to. A non-porous substrate would not allow this and so the bond, if an, would be weak.

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Lesly Jaskolski

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2y ago

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