The movement of plasticizers from a plastic into an adhesive, face material, or both. This can cause degradation of the adhesive and bleed-through of adhesive components into the face material.
Migration of ingredients from there intended location. Migration of plasticizers from flooring materials can cause tackiness in floor finishes or adhesion problems. Migration from floor finish to flooring is also possible.
This is caused when a plasticizer in a floor mat or floor material transfers itself (migrates) into the floor finish or sealer. This is responsible for the discoloration sometimes found around or under floor mats.