Repaired floor...
For some reason, I never realized one needs a special gun for 2-part seam sealer. Got the cheaper paint store brand instead of the 3M gun. Also store brand sealer. More paint deja vu under the old plastic shade tree.
Using this stuff to replace the original sound proofing on the floor. Seems like the same thickness and material. Using heat and maybe a crude wooden form to press it down.
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