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EPDM profiles-hot air cure

EPDM profiles-hot air cure

(OP)
It's highly appreciate to somebody tell me, how can I cure EPDM profiles in hot air tunnel?, the temp.is 300C and tunnel length is 12M and extruding out put is 45 grs./min. thanks in advance.

RE: EPDM profiles-hot air cure

What is the extruder output speed in metres/minute?

RE: EPDM profiles-hot air cure

(OP)
Dear Graham, it's 8meters per minute.

RE: EPDM profiles-hot air cure

Providing the profiles are thin sectioned (<3mm) I would run the tunnel conveyor at the same speed to start with. If you see evidence of undercure, slow the conveyor down somewhat.

RE: EPDM profiles-hot air cure

(OP)
Thank you very much for your comment,I would explain more that now we are producing silicone rubber profiles, actually I wanted to know that, is it possible we shift from silicone compound to EPDM compound for the same profiles? if yes then is it needs we design a special formula or any changing in curing line for example add UHF or IR tunnel to our hot air tunnel?.

RE: EPDM profiles-hot air cure

You will probably have to cut a new extruder die for the EPDM compound because the die swell could will be different.

Ref the EPDM compound - I would talk to your supplier about this.

RE: EPDM profiles-hot air cure

(OP)
OK

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