Removing Polyurethane Adhesive From Block How Do I Remove "spots" Made From Polyurethane Adhesive From The Surface Of Bamboo Flooring?

How do i remove "spots" made from polyurethane adhesive from the surface of Bamboo flooring? - removing polyurethane adhesive from block

Simply radiant heat in concrete floors bamboo with polyurethane adhesive. The spirit I have tried without success.

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