| Customization: | Available |
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| Material: | Silicone Rubber |
| Application: | Household, Medical, Industrial, Agricultural |
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Application:
This series of products is mainly composed of linear polysiloxane mixed with gas-phase white carbon black, reinforced fillers and coupling agents added, and a special synthetic elastomer generated by vulcanization under heating and pressure conditions.
Usual Service Conditions
The product is designed to perform under standard environmental conditions, with specific resistance to high and low temperatures, oxidation, and UV exposure, making it suitable for a wide range of applications.
Additional Features
Insulation Performance
The silicone rubber offers superior insulation performance, making it ideal for use in HV cable insulation and other electrical applications requiring high-performance insulation materials.
Technical Performance
After adding the "Double 2.5" type vulcanizing agent, the silicone rubber can be molded into various products with semi-transparent characteristics and excellent physical and mechanical properties.
Main technical indicators
| Product indicators | NK-6520 | NK-6550 | NK-6570 | NK-6580 |
| Exterior | Milk white, transparent, without mechanical impurities | |||
| Density,g/cm3 | 1.07±0.05 | 1.14±0.05 | 1.20±0.05 | 1.22±0.05 |
| Shore hardnessDegree | 22±2 | 50±2 | 70±3 | 88±3 |
| tensile strength,Mpa ≥ | 7.0 | 9.5 | 9.5 | 7.0 |
| Elongation at break,% ≥ | 700 | 350 | 250 | 100 |
| Permanent set ,%≤ | 8 | 6 | 6 | 6 |
| Tear strength,KN/m≥ | 12 | 25 | 25 | 10 |
| Linear shrinkage rate(%) | 3.0-4.0 | 3.0-4.0 | 3.0-4.0 | 3.0-4.0 |
The workshop used for the production of silica gel is absolutely independent in order to be able to supply our customers with non-polluting HTV silica gel mixes.
Our silicone compound products have the following characteristics
Moulded parts 25-90 Shore A
Extrude silica gel 60-80 Shore A, DCLBP free
Cable application 60-80 Shore A
Tear resistant variant 30-70 Shore A
High insulation 40-80 Shore A
Second stage vulcanized silica gel 40-90 Shore A is not required
All silicone compounds are available in peroxide or addition-curing systems and are available in 25 standard colors. Special colours are also available on request.
We can supply the following forms of delivery: plastic film isolated, filled with glue blocks, carbon black as spacer continuous tape, rolled film or rolled film.
Usage and Precautions
It is advisable to follow the recommended mixing ratios and curing conditions to achieve optimal performance. Proper handling and storage are crucial to maintain the quality of the silicone rubber.
Packaging and Storage
The product should be protected from moisture and heat. It should be stored in a dry and ventilated warehouse. The net weight of each package is 25KG, and it is packaged in cardboard boxes to ensure safe transportation and storage.
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(Nankai New Materials is a subsidiary of Xiya Electric Equipment Co., LTD)
Main Technical Standards:
General Standards:
Operating Temperature: -15ºC to +80ºC
Storage Temperature: -30ºC to +85ºC
Storage Time:
Flat storage without compression: Long-term storage possible
Storage under compression: 1 month
Operating Relative Humidity: 45% to 95%
Operating Air Pressure: 86-106 Kpa
Contact Rate: 5MA at 12VDC/0.5s/2×10^7 times
Contact Bounce: <12 milliseconds
Insulation Resistance: >10^12 Ohms/500VDC
Breakdown Voltage: >25KV/mm
Appearance Standards:
Color:
Standard: No exposed silicone after vulcanization assembly, no significant difference
Testing Method: Under bright natural light or a 40W fluorescent lamp, place the standard sample or color card alongside the sample to be checked. Have a professional with vision 1.0 or higher, without color blindness, visually inspect for 5 seconds at a distance of 30cm from the sample.
Eccentricity:
Standard: When the elastic wall thickness H_thick - H_thin ≤ 0.1MM, the mold inspection X = 20%; when ≤ X elastic wall thickness ≤ 0.2MM, the mold inspection X = 15%; when H_thick + H_thin elastic wall thickness ≤ 0.3MM, the mold inspection X = 8%
Testing Method: Measure with a thickness gauge.
Physical and Chemical Properties:
Hardness: Determined by Shore hardness tester to ensure product suitability for different applications.
Tensile Strength and Elongation: The product must have good strength and elasticity under tension to cope with various usage conditions.
Heat Resistance and Cold Resistance: Specifies the stability of silicone in high and low temperature environments to ensure safe use under extreme conditions.
Aging Resistance, Weather Resistance: Ensures good durability of silicone rubber products.
Chemical Composition, Additives, Harmful Substance Content: Strictly limited to ensure product safety and environmental friendliness.
Processing Technology and Quality Control:
From formula design, mixing process, molding process to post-treatment process: Detailed regulations and requirements are in place.
Appearance quality, dimensional accuracy, surface finish, bubbles, defects, etc.: Strict inspection standards are applied to ensure stable and reliable product quality.
Application Field and Usage Requirements:
High Temperature Resistance, Chemical Resistance, Oil Resistance, Ozone Resistance: Detailed specifications are provided for different application scenarios to meet the special requirements of different industries for silicone rubber products.
Main Implementation Standards:
National Standards (GB):
GB/T 4080-2008 Silicone Rubber Standard: Specifies the classification, basic properties, and testing methods of silicone rubber.
GB 4806.11-2016 Safety of Silicone Rubber Materials and Products for Food Contact: Regulates the safety of food-grade silicone rubber.
GB 16886.6-2015 Biocompatibility Standard for Medical Silicone Rubber: Provides requirements and methods for biocompatibility testing of medical silicone rubber.
International Standards (ISO):
ISO 8478:2005 Classification of Silicone Rubber and Polymers: Provides a unified basis for the international classification of silicone rubber.
ISO 14001 Environmental Management Standard: Although not specifically for silicone rubber, many silicone rubber manufacturers follow this standard to ensure the environmental friendliness of their production processes.
Our Services
FAQ
Q 1. Are you a factory or trading company?
A.We are a factory.
Q 2. Where is your factory located? How can I visit there?
A. Our factory is located in Wenzhou City, Zhejiang Province, China. You can fly to Longwan airport directly. All our clients,from home or abroad, are warmly welcome to visit us!
Q 3. What's the payment term?
A. We accept TT, 30% deposit and 70% before shipment, Western Union, L/C At Sight is ok! We'll show you the photos of the products and packages before you pay the balance.
Q 4. Tell me the standard of package? What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q 5. Would you accept to use our logo ?
A. If you have good quantity,it absolute no problem to do OEM.
Q 6. How about the transport?
A. If the number of goods is small we usually use TNT,DHL,FEDEX,EMS and some express you offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
Q 7. What is your Production lead time / delivery time?
A: Generally, it will take 25 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Silicone rubber's regular product is 1,000/ week , Porcelain's need 2-3 weeks about 1000 pcs.
Q8. How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
A: 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
A: 3.Most goods we have the type report according the IEC STANDARD
Q9. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.
Q10. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q11. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q12.What certificates do you have?
A:ISO9001,OHSAS18001,ISO14001 certificate and Type test report of product.
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