Injection molding of liquid silicone rubber
1、 Product Instruction
Injection molding of liquid silicone rubber (LSR) is a process to produce pliable, durable parts in high volume.
Liquid silicone rubber is a high purity platinum cured silicone with low compression set, great stability and ability to resist extreme temperatures of heat and cold ideally suitable for production of parts, where high quality is a must. Due to the thermosetting nature of the material, liquid silicone injection molding requires special treatment, such as intensive distributive mixing, while maintaining the material at a low temperature before it is pushed into the heated cavity and vulcanized.
Chemically, silicone rubber is a family of thermoset elastomers that have a backbone of alternating silicon and oxygen atoms and methyl or vinyl side groups. Silicone rubbers constitute about 30% of the silicone family, making them the largest group of that family. Silicone rubbers maintain their mechanical properties over a wide range of temperatures and the presence of methyl-groups in silicone rubbers makes these materials extremely hydrophobic, making them suitable for electrical surface insulations.[1]
Typical applications for liquid silicone rubber are products that require high precision such as seals, sealing membranes, electric connectors, multi-pin connectors, infant products where smooth surfaces are desired, such as bottle nipples, medical applications as well as kitchen goods such as baking pans, spatulas, etc. Often, silicone rubber is overmolded onto other parts made of different plastics. For example, a silicone button face might be overmolded onto an Nylon 6,6 housing.
2、Product Description
Product Name | Injection molding of liquid silicone rubber |
Material | NR, EPDM,Silicone rubber, NBR, SBR, HNBR, IIR, CR, SIL, FKM etc |
Hardness | Between 30-90 Shore A |
Color | Colorful according to the requirement |
Size and Design | According to the 2D or 3D drawing |
Logo and Printing | According to the requirement |
Heat Resitance | -60ºC to 350ºC |
Tolerance | A2 |
MOQ | 1 |
Certification | ISO9001,TS16949,SGS,ROHS, |
Small Order | Acceptable |
OEM/ODM | Welcome |
Logo & Printing | According to your requirements. |
Feature | oil and fuel resistance, water resistance, weathering resistance, Ozone resistance etc. |
Sample and Charge | Sample charge based on the quantity,little piece sample is free |
Mould open and charge | We have our own advanced mould machine, can supply best quality and lowest price mould. |
Production Process | Get the Drawing--Open the Mould--Produce the Sample-Send Sample to customer for confirmation--Book the order and arrange payment-Mass Production for the order--Trim and inspect the goods-packing and arrange shipment. |
3、Benefits of Liquid Silicone Rubber (LSR)
4. Batches stability (ready-to-use material)
5. Process repeatability
6. Direct injection (no waste)
7. Short cycle time
8. 'Flashless' technology (no burrs)
9. Automated process
10. Automated demolding systems
4、Our Services
1）We will reply your enquiry in 8 hours,any time you can contact us.
2）OEM, buyer design, buyer label service is available.
3）We can provide free sample for your testing.
4）We have the certification of ISO 9001,TS16949
5）Special discount and protection of sales area provided to our distributor.
6）Timely delivery
7）packing can make client brand.
8）Good after-sale service
5、Company Information
We manufacture for various rubber products, our main rubber products are: Auto rubber parts、Rubber grommet, Rubber washer, Rubber boots, Bushings, Seals, Rubber bumper (buffer), Rubber Gaskets, O-ring, metal-to-rubber parts, Demister, Anti-vibration mountings, and so on. Most of our product was applied to auto & motorcycle parts, electric components, and household accessories. We welcome customize order!
6、Shipment
1） Express(fast,samples are suggested)
2） By air,(fatest,high expense)
3） By sea(large order,longer time,cheapest).
4） The standard shipping is 10-22 working days. The expedited shipping is 3-5 working days,.
5） All international orders may be subject to their custom fees or duty tax which we do not pay.
6） All buyers must pay for their own customs fees or brokerage fees or duty tax.
These fees vary due to price of item and government rate. Please contact your government website or shipping company to calculate fees.
7、FAQ
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally 3-10 days for standard sealing products; and 15-20 days for big order and custom non-standard products.
Q: Do you provide free samples?
A: Yes, we offer free sample while customer need pay for the freight charge.
Q: Which Payment way is workable?
A: Irrevocable L/C, Cash, PayPal, Credit card and T/T money transfers.
B: 30% T/T deposit in advance, 70% balance before shipment after presentation of ready cargo.
C: L/C ( Irrevocable LC at sight: Order amount over USD10,000)
Q: What is your standard packing?
A: All the goods will be packed by carton box and loaded with pallets. Special packing method can be accepted when needed.
Q: How to select the raw compound for my application?
A: With years of experience working with a variety of material, we can help select the material that will best suit your needs while keeping material costs in mind.
Q: Do you use any international standards for the rubber products?
A: Yes, we mainly use ASTM D2000 standard to define the quality of the rubber materials, tolerances as per ISO3302, ISO2768, etc.
Q: Can you supply different color materials?
A: Yes, we can produce custom molded rubber and silicone rubber products in different colors, the color code will be required in case of an order.
Q: What materials are available to produce from your side?
A: NBR, EPDM, SILICONE, VITON(FKM), NEOPRENE(CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone(FVMQ), FFKM, Liquid Silicone, Sponge, etc.
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