My old boss in Phoenix swore by using a 12-inch drywall knife for spreading seam adhesive, and after ruining a seam on a $2,000 wool carpet last month, I finally realized he was dead wrong.

The rigid blade doesn't give you the feel for how much adhesive you're laying down, and I ended up with a hard ridge that showed through the pile after it cured... what's your go-to tool for a smooth, invisible seam?

2 comments

2 Comments

oliviabennett20d ago

Yeah, that's a classic case of using the wrong tool for the job. A flexible 6-inch knife gives you way more control over the adhesive bed. You can actually feel the carpet backing and avoid those rock-hard ridges.

martinez.diana20d ago

Ever think about the carpet itself? @oliviabennett is right about the flexible knife, but with that expensive wool, the backing is so different. I had to learn that a dense woven backing needs way less glue than a synthetic mesh. I test the spread on a scrap piece first now, because even a perfect thin line can seep up and stain the wool fibers if you're not careful.