Dongguan Ruichen Sealing Co., Ltd.
TO BE O RING KING
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Silicone rubbers are widely used in industry and there are multiple formulations. Silicone rubbers are often one or two part polymers, and may contain fillers to improve properties or reduce cost. Silicone rubber is generally non-reactive, stable, and resistant to extreme environments and temperatures from -40 °C to +220 °C while still maintaining its useful properties. Due to these properties and its ease of manufacturing and shaping, silicone rubber is used in silicone gaskets, seals and orings and can be found in a wide variety of products such as:
Key Use(s): Static seals in extreme temperature situations. Seals for medical devices, compatible with FDA regulations.
Temperature Range:
Standard Compound: -40° to +220°C
Hardness (Shore A): 20 to 90
Features: Phenyl (PVMQ) based silicones can perform to -85°F. New polymers can take short term to 600°F.
Limitations: Generally, low abrasion and tear resistance, and high friction characteristics preclude silicones from effectively sealing some dynamic applications. Silicones are also highly permeable to gases and are generally not recommended for exposure to ketones (MEK,acetone) or concentrated acids.
Except silicone material ,we have many other rubber material .and different material with different properties ,pls
refer to the below excel list :
| FKM product | Silicone product | NBR product | HNBR product | EPDM product | NR product | Peoprene product | |
Abbreviation | FKM | silicone | NBR | HNBR | EPDM | Nature rubber | Neoprene |
Durometer(shoreA) | 60-90 | 30-90 | 20-95 | 50-90 | 30-90 | 20-90 | 20-95 |
Tensile(P.S.I) | 500-2000 | 200-1500 | 200-3000 | 2600 | 500-2500 | 500-3500 | 500-3000 |
Elongation(Max.%) | 300 | 700 | 600 | 530 | 600 | 700 | 600 |
Compression set | good | Good | Good | Excellent | Good | Excellent | Good |
Resilience-Rebound | Fair | Good | Good | Excellent | Good | Excellent | Excellent |
Abrasion Resistance | Good | Fair to poor | Excellent | Excellent | Good | Excellent | Excellent |
Tear Resistance | Good | poor | Good | Excellent | Fair | Excellent | Good |
Solvent Resistant | Excellent | poor | Good to excellent | Good | Poor | Poor | Fair |
Oil Resistant | Excellent | Fair to poor | Good to excellent | Excellent | Poor | Poor | Fair |
Our factory introduction:
We mainly specialize in producing different types of rubber grommet ,especially SBR grommet. o-ring repair kits, excavator o-ring kits, rubber washer, customized rubber products.The materials are available in NBR, FKM, EPDM,MVQ and HNBR.
We have more than one thousand available o-ring moulds and can open new moulds as customers' drawings. We can also provide different types of hardware tools kits like copper washer kits,snap ring assortment kits, spring assortment, Hose clamp set and so on.
Our products can meet CE and ROHS requirements and have a big market around the world.
You can see our factory enviroment from the picture
Process Flow:
Raw material test → Prescribe → Mixing Material → Cutting Material → First Cure → First Part Inspection → Casual Inspection
→ Burr Dealing → Eye Inspection → IPQC → Washing or Grinding → Post Cure → FQC → Packing
Packing & Delivery:
Packing: PE bag inside, Carton outside.
FAQ:
1,Are you manufacture or trading company ?
We are manufacture, we have two factories, one located in Shangrao City,
Jiangxi Province, one in Dongguan City, Guangdong Province
2,Can I get samples from you ?
Of course, you can. If the samples you need we have in stock, you can get them for free,
only need to pay for the express cost.
3,What's the term of payment ?
Amount < US$2000, 100% paid in advance by paypal or T/T;
Amount >= US$2000, 30% paid in advance, 70% balance before shipment by T/T.
4,Can you produce OEM products ?
Yes, we can produce products by your drawing or samples.
5,What's your MOQ ?
If we have the products in stock , the quantity by your requirement, If we don't have them in stock:
NBR, SIL, SBR, EPDM, NR: 100 US$; PU, HNBR, FKM: 150 US$