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Latex Forum
Seam ripped
Posted by: Lynnsinger on: 2010-06-28 10:14:54
I am making a pencil skirt. I glued the seams together with the solvent glue I bought. I let the skirt set for the 24 hours. I pull tested the seam and it ripped apart. It didn't pull apart on the seam but ripped apart beside the seam. Can anyone tell me why? I cleaned the latex edge with mineral spirits before I ended up washing the whole sheet. Could that be it? Did the mineral spirits weaken the latex or is the latex too thin. It is .30 mm.
Other threads in this post:
Topic: Careful cutting
Posted by: Greg Flynn on: 2010-08-22 23:01:34
The most frequent issue that causes a rip next to a seam is a nick that occurred when cutting. Did you use scissors or a rotary cutter when you cut your seam?
It is imperative that you use a rotary cutter and check to ensure there are no rough areas, nicks, pin pricks etc. Latex rips super easy, so you must use caution.
Secondly - how hard did you pull on the seam? I would guess that .30mm will withstand pretty much anything you can give it, but a thicker guage will probably hold up better than thinner b/c it actually stretches less under the same amount of pressure.
Topic: Using Mineral Spirits
Posted by: Steve F. on: 2010-08-25 16:27:08
Do not use any petrochemical based item with latex! Cleaning for solvent gluing is best performed with Heptane. (It is a solvent for latex rubber and is the second ingredient in rubber cement: the first being white rubber.) Dick Blick artists supply has two grades of Best-Test and I cannot tell any difference other than price.
