Recent content by Ltormento1

In a first moment you need to check if the temperature profile are the same on the ovens, without this information is very difficult to give your a feedback and solution.

Change your plasticizer and make sure that the sulphur will be well dispersed - add it on the beggining of the process. In my opinion the rubber powder increase the sulphur content and this is causing the blooming

I think they are using a regular NBR and due the high level of vulcanization accelerator they heve the breaking problem. My suggestion is to use a NBR with low viscosity (30 ML1+100) increase the level of carbon black and add a litle quantity of polyesther plasticizer as processing aids. This...

BS 3222 Low compression set Nitrile compounds

Dear Sir, Some important questions to help you to solve this: 1) Were it is used? 2) It have contact with watre, oil, etc.? 3) What is its color? Luis

Due to the clear color NBR is prone to be attacked by Ozone and Oxygen and have the cracks. I suggest you to blend the NBR with EPDM or make the parts with CPE (as CPE is cured by peroxides a post treatment to eliminate odor is recommended). Please check the interaction of the filler and the...

I am experinecing some problem on the dispersion of silica in blends of EPDM/SBR, SBR/NBR and EPDM/EVA. The products appeared to have different dispersions in teh different phases of elastomers. I tryed to check if a correlation like carbon black, based on structure and granulometry appeared on...

On the last IRC2009 in Nuremberg I talked with the person that I referenced: Mr. Emil Schmid and he showed to me a gasket made in this process. I think if you ask direct to him he could explain to you better, because is related to activation of the atoms on the surface of the metal, like plasm...

I used to modify the surface of the metal using UV and after used a water based adhesive. Perhaps it can help you to solve the adhesion question on treated metals. Please contact Tack-Service on Germany: Mr. Emil Schmid - tackservice@aol.com

If you are referring to the material to handle it probably are: - TPU - TPV

You can try Intota they have a lot of specialists on this field

Nlj, if you are using diesel with biodiesel blend it is the cause of your problem. Biodiesel extract the plasticizer of the walls of the rubber compound and it became hard and break easily. Solution for the problem change the plasticizer for a polyesther based - high MW with low extraction by...