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The pinch method is sealing. My seams became less visible when I started thermo sealing. It tends to reduce peaking. I like edge sealing because the heat from the gun shrivels up most of the primary backing yarns that sometimes stick out so you don't have to trim them off. Thermo doesn't have to dry either and unlike latex, the edges don't 'self stick' if the seam edges butt together before you get the seam completed.The trick for me is to use as little edge sealer as possible, just barely fill in the voids.
The pinch method is sealing. My seams became less visible when I started thermo sealing. It tends to reduce peaking. I like edge sealing because the heat from the gun shrivels up most of the primary backing yarns that sometimes stick out so you don't have to trim them off. Thermo doesn't have to dry either and unlike latex, the edges don't 'self stick' if the seam edges butt together before you get the seam completed.
The trick for me is to use as little edge sealer as possible, just barely fill in the voids.