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FAQ
  • Q

    1.Q: How we know the price and whether the product can use liquid silicone rubber to make or not?

    A:  

    Send us drawing please, and our engineer will evaluate details according to the drawing and offer some suggestion to let the design more suitable for production if necessary

  • Q

    2.Q: What are the differences between solid compress silicone rubber products and liquid injection silicone rubber products......

    1. Q:

    What are the differences between solid compress silicone rubber products and liquid injection silicone rubber products?

     

    A

         --Solid compress silicone rubber products cycle time shorter than liquid injection silicone rubber products

     

         -- liquid injection silicone rubber products flash and appearance better than Solid compress silicone rubber products

     

         -- liquid injection silicone rubber products flexibility, lifetime, transparency better than Solid compress silicone rubber products

     

         -- liquid injection silicone rubber products to make colors and hardness are more complex, and need to use around 20-30kgs material to wash machine.  Solid compress silicone rubber products to make color and hardness are very easy.

     

         -- For some complex structure, liquid injection silicone rubber mold can make, but solid compress silicone rubber mold may can not.

  • Q

    3.Q: What is difference for solid hot compressed nipples and LSR injection nipples?

    A:  

    --LSR injection nipple transparency higher than solid hot compressed nipples

     

    -- LSR injection nipple flexibility higher than solid hot compressed nipples

     

    -- LSR injection nipple biting force test better than solid hot compressed nipples

     

    --When produce LSR injection nipple, material was sealed and goes into the machine automatically. But for solid hot compressed nipples, from material mixing to put into the machine need worker’s hands operate.

  • Q

    4.Q: How many ways to stick metal, plastic and LSR?

    A:  

    Two ways, one is there is a self-stick material which can use to do injection of over-molding, but for this material, not for all kinds of over-molding material, some can stick well, some can not, and the price is around 3 times higher than normal LSR material. Another way is to use special glue to stick.

  • Q

    5.Q: Does any glue can use to stick LSR and other material?

    A:  

    No, only special glue. LSR is very stable, especially after molding, it would be very hard to stick together.

  • Q

    6.Q: What is the difference for using liquid silicone rubber seal ring and solid silicone rubber seal ring?

    A

    -- Liquid silicone rubber seal ring surface are more smooth than solid silicone rubber seal ring.

     

    -- Liquid silicone rubber seal ring thickness are more equal, so, sealing better.

     

    -- Liquid silicone rubber seal ring flash better than solid silicone rubber one.

  • Q

    7.Q: liquid silicone rubber injection technics and solid silicone rubber in hot compress technics......

    7. Q:

    liquid silicone rubber injection technics and solid silicone rubber in hot compress technics, which mass production capacity larger for same products?

     

    A:  solid silicone rubber in hot compress production temperature are around 180-230 degree, but liquid silicone rubber injection just around 110-160 degree, so, solid silicone rubber in hot compress production capacity are higher.

  • Q

    8.Q: What kind of material can use with LSR over-molding and how their performance?

    A

         --Metal: stick well, and temperature resistance also well.

     

         -- Nylon: stick is the best of these 3 kinds of material, but for colors, not so good in control.

     

         -- High temperature resist PC: both stick and temperature resistance are not as good as metal and nylon.

  • Q

    9.Q: Why black color for lsr products are more expensive?

    A:

    As the material need to arrive into the mold, it need to go pass from a long material pipe, and the material is viscous, so, even a little bit black material stick in the pipe, when produce other light or transparent color products, the products would be rejected. And even after 1-2 months, sometimes, still will come a little bit black dots.

  • Q

    10.Q: Is there any requests for the product surface for over-molding products?

    A:  

    Yes, texture would be the best, it can enlarge surface for glue sticking with the product, so, the different parts can stick more strong together.

  • Q

    1. Q: What is difference between China local LSR material and imported LSR material for nipple using?

    A:  

    China local LSR material’s quality is very close to imported LSR material, the mainly difference is price, MOQ and delivery time. For the delivery time, if there is stock in China, then delivery time is around 3-7 days, if do not have, then need 60 days. And few customers need imported LSR material, so, if place orders, there is MOQ request for at least 1 set material (A and B). just if request is too high, imported LSR material’s transparency, flexibility and a little better than China local LSR material, just not too obviously.

  • Q

    2.Q: Liquid silicone rubber mainly use for which field?

    A:  

    Mainly use for medical products, baby products, some complex industrial products, over-molding, ware products, some sealing products and so on.

  • Q

    3.Q: What is the hardness that LSR?

    A:  

    10-90 shore A

  • Q

    1. Q: What is automatically LSR injection molding?

    A:

        The products can be got off from the molds by air blowing system, no need workers to operate.

  • Q

    2. Q: What is difference for cold runner and hot runner?

    A:

    Cold runner mold price higher than hot runner mold, but hot runner mold material wastage during production more than cold runner mold. So, if quantity is small, can consider to use hot runner mold, and if quantity is large, to use cold runner mold would be better.

  • Q

    3. Q:Why need to confirm split line and material gate before mold building?

    A:

         Split line and material gate effect the mould structure, and mould structure decide mould cost.

  • Q

    4. Q:What is the difference of mould structure for using liquid silicone rubber injection technics......

    4. Q

    What is the difference of mould structure for using liquid silicone rubber injection technics and solid silicone rubber in hot compress technics?

     

        A

    Liquid silicone rubber injection mold are much more precise than solid silicone rubber in hot compress technics, so, for more complex structure products which can not use solid silicone rubber in hot compress technics, liquid silicone rubber injection technics can solve the problem

  • Q

    5.Q: Why for over-molding molds can not build too many cavities or too large?

    A

    ---For over-molding molds, the precise request are very high, if build too large or too many cavities, it would be very hard to adjust balance when doing mass production.

     

    ---For over-molding together parts, there would be tolerance for each part during mass production. And the lsr mould itself also with tolerance each cavity, the cavities are more or mould are more large, the tolerance would be more large also. So, smaller are better for control to save reject rate.

  • Q

    6.Q: Can liquid silicone rubber injection mould make small holes for products?

    A:

    Can, as can make slider for liquid silicone rubber injection molds, so, the niddles will not so easy to be broken.

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