I finally listened to an old installer about seam tape temperatures

Last month I was doing a living room in a split-level house in Hinsdale and kept getting seam peaking. An older guy named Frank who's been at it since the 80s told me I was running my iron too hot and cooking the adhesive too fast. He showed me how to drop the temp by 25 degrees and let the tape set longer. Has anyone else ever been taught a simple trick that saved you hours of rework later?

2 comments

2 Comments

nina1471mo ago

Frank from the 80s huh. I've had guys like that tell me all kinds of stuff. Dropping the temp by 25 degrees sounds like a specific fix for a specific problem on one job. Maybe your iron was too hot that day. But seam peaking can come from a dozen different things like bad prep or humidity or cheap glue. I just don't see how changing one number is going to save you hours every time. Feels like he was guessing and you're turning it into some golden rule.

lucas_perez1mo ago

Yeah that part about "specific fix for a specific problem" really sticks with me. I think that's exactly what happened here. Frank probably ran into seam peaking one time on a tricky vinyl job where the heat was cooking the adhesive too fast and dropping the temp fixed it right then. But that doesn't mean it's a cheat code for every single project. Like you said, bad prep work or a humid day can mess things up just as bad. I bet if someone tried that 25 degree drop on a cold winter day with cheap glue, they'd end up with even more problems. I'm not saying it's useless info, but it's more like a tool in the box than a golden rule.