This a seam done on 1" with routed surfaces, scuffed with 440 w/d sandpaper and welded with #40. The orange cloth is on the inside so you can see the seam. The goober on the left side is what flows out of the seam on the downhill side under the tape. This will be cleaned up with a flush trim router then sanded and polished. You don't want any gaps or bubbles in the seam as they will cause a weak spot. Very tiny bubbles here and there are ok and should not present an issue other than cosmetic.
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