ARPM Rubber Manufacturing Forum

In it's June 2024 update, ECHS added a chemical commonly used as an initiator in rubber compounds to its list of Substances of Very High Concern - SVHC. It is CAS# 80-43-3 We buy it as DI-CUP-40C from Harwick. We are having a tough time concluding whether this gets used up in cure, and whether we ca...

Good morning,
We have a surplus of this polymer, at least 100 KG. Is anybody interested in purchasing it?

Is there anyone here who is familiar with the requirements for EC1935 compliant material?

My specific question is in regard to whether it is necessary to complete a GMP facility audit (and which one), or is the rigorous extraction testing enough?

We do have someone on staff who handles these requests. We do our own compounding, so are quite knowledgeable about material certifications and requirements. That said, I do have a question I'm going to post today regarding EC1935 specifically.

We have a large surplus of this material on hand that we'd be happy to sell at a discount to current market price.

Please contact me if you have any interest.

Our molding operation is currently not airconditioned, but we move a very large volume of fresh air through to keep temps down, and as a result have never had any issue with smoke/particulate from the off-gassing of our rubber. We are now planning to wall off a portion of the presses for the purpose...