How to join silicone o ring cords

How to join silicone o ring cords 

Normally customer will have the question how do you join the silicone rubber cords to make a o ring in a more productive way , this article will describe how to bond silicone o ring  cords more efficiently . 

Traditionally silicone extrusion products manufacturers resort to compression molding for making silicone o ring gaskets , they will make the mold first and put a number of htv silicone rubber in mold and by heat and compression , the htv silicone rubber will be vulcanized into an o ring , that absolutely  make a nice o ring , but it is to image how low productive that can be . 

Another way of how do you glue silicone o rings is by cold bond , the manufacturers will make extruded silicone cords first and cut them into needed length , then they apply adhesive on the both ends of silicone cords and place them in a fixture for glue to vulcanize in room temperature , the glue normally takes more half an hour to get dry . that also require you to make many fixtures for mass production which is also very inconvenient . 

So silicone extrusion manufactures suffered such pain points , they wonder how do you splice an o ring cords , to bond silicone o ring cords fastly ,  we will have to apply adhesive of course ,but not cold bond adhesive , but heat fast curing adhesive , the htv silicone adhesive . which can cure fastly by high temperature heating and compression at 175 degrees for 8-10 seconds . ESMAI supplies the ES-100-AB will be good for that ,contact michael at sales@cnesmai.com  if needed . 

Secondly , we have to apply with a silicone o ring gaskets joining press machine (below youtube video )which can supply with up to 400 degree celcus the heat temperature . this joining press machine also supply draws very high pressing force from an external linked air compressor to the heating mold , that will help the htv silicone adhesive to cure very efficiently and fastly and consequently form a good bond of silicone to silicone to make an silicone o ring cords . 

The key point of this practice is a precise mold which holds the silicone cords just well ,  a secured tight contact of silicone cords with the mold is important for the silicone adhesive to absorb heat  and cure efficiently and guarantees a fast jointing of silicone o ring cords . so the cavity had to be made precisely on the molds based on customer's silicone o ring cords sizes . 

ESMAI have its own molding facility and rich molding experience which will help customers to design the precise molds , customer are welcome to send their silicone cords OD mm sizes ,ESMAI will make precise round cavity half on the down mold and half on the upper molds based on our production experience. customer do enjoy one stop service and one -stop solution of how to join silicone o ring cords  from us .   

The mold is made of copper which is high heat tranfer efficiency ensuring no heat loss generated from the silicone o ring cords jointing machine . 

Above is the introduction of new efficient ways  of how to join silicone o ring cords , if you need to know more details ,contact michael at  sales@cnesmai.com ,thank you for your attention .