Why do my seams unstick?
Hi everybody, I hope that you can help me out. I have recently started making my own rubber gear, however I running into troubles/ insecurities. How much stress should a latex seam be able to handle?
My current proces:
Clean sheets with heptane and let it dry (0,4mm, from latexpermeter.com)
Apply solvent based glue from latexrepair.nl to both sheets and let it rest for 4 minutes
Glue together and apply force on the seam with a roller
Let it rest for 24 hours
The issue that I am facing is that I did some test strips with different dry times 5, 10 and 15 minutes and with all of them after stretch the sheets by 50% did the seams come apart.
What I mean with this is that the 2 sheets would separate where I glued them together (see picture).
Is this normal after this amount of pressure, or what am I doing wrong ?
Thank you already so much for your help
EDIT: for some reason my current process explanation was deleted, Toni added it back