{"title":"603 Red Bottom Line Polyester Thread","description":"\u003cp\u003e\u003cstrong\u003e603 Red Bottom Line Polyester Thread\u003c\/strong\u003e is a classic bright red in Superior Threads' ultra-fine 60-weight Bottom Line line — providing the finest possible red stitching for competition quilts on red backgrounds, invisible bobbin use under red top threads, and any application where maximum thread fineness with a vivid red color is needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What is Bottom Line?\u003c\/strong\u003e\u003cbr\u003eA: Superior's 60-weight filament polyester — the finest thread in their lineup. Originally designed as a premium bobbin thread, also used as top thread when the smallest possible stitch holes are required.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What shade is 603 Red?\u003c\/strong\u003e\u003cbr\u003eA: A bright, clean red — classic red without heavy orange or dark undertones.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: When should I use Red Bottom Line instead of Red Glide or Omni?\u003c\/strong\u003e\u003cbr\u003eA: When maximum thread fineness is the priority — for competition quilts on red fabric, or bobbin use under red Glide on top. Bottom Line creates significantly smaller stitch holes than 40-weight thread.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What weight is Bottom Line?\u003c\/strong\u003e\u003cbr\u003eA: 60-weight filament polyester. Requires significant tension adjustment. Always test before production use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is Bottom Line lint-free?\u003c\/strong\u003e\u003cbr\u003eA: Yes — completely lint-free filament polyester.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is Red Bottom Line good in the bobbin under red Glide on top?\u003c\/strong\u003e\u003cbr\u003eA: Yes — one of the most effective uses of Bottom Line for color-matched front-to-back stitching on red-backed quilts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is 603 Red Bottom Line compatible with all longarm machines?\u003c\/strong\u003e\u003cbr\u003eA: Yes — with proper 60-weight tension setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is 603 Red Bottom Line in stock at Linda's?\u003c\/strong\u003e\u003cbr\u003eA: Check the current product listing for live availability.\u003c\/p\u003e\u003cp\u003eThe finest red stitch — shop \u003cstrong\u003e603 Red Bottom Line\u003c\/strong\u003e at Linda's Electric Quilters.\u003c\/p\u003e","products":[],"url":"https:\/\/battingcompany.com\/collections\/603-red-bottom-line-polyester-thread.oembed","provider":"The Batting Company","version":"1.0","type":"link"}