Improper sealing material selection will cause equipment leakage, aging, and insulation failure. You should choose suitable materials based on the working conditions to avoid risks. This article covers silicone cord advantages, industrial applications, and selection tips to help your business achieve better reputation and higher profits.
What Is Silicone Cord?
Silicone cord is an extruded silicone rubber profile. It is widely used for sealing, cushioning, insulation, and gap filling.
Silicone rubber cord has more stable performance than regular rubber. It can suit high temperature, damp environments, medical use, food contact, and outdoor conditions. The silicone cord will help you extend the equipment service life and reduce maintenance frequency. Then it can help you reduce extra costs and consumers’ complaints.
Common silicone rubber cord types include solid silicone cords, high temperature silicone cords, hollow silicone cords, silicone o-ring cords, and silicone sponge cords.
Advantages and Applications of Silicone Cord
Seals and Gaskets
- Advantages of Silicone Cord
Industrial sealing failures are usually caused by temperature fluctuation, compression deformation, aging, and chemical exposure.
Silicone cord can maintain flexibility under long-term compression and temperature fluctuations. It has great compression resistance, stable rebound, and reliable long-term sealing for both dynamic and static sealing conditions.
- Applications
Silicone cord is often used for oven seals, industrial equipment gaskets, HVAC seals, enclosure seals, and waterproof sealing systems.
You can choose round or hollow silicone cords to fit dynamic sealing systems well.
Food and Beverage Industry
- Advantages of Silicone Cord
Normal rubber may cause odor transfer and product pollution. It will also harden after high-temperature cleaning and bring sanitation risks.
Food-grade silicone cord can maintain stable chemical properties after repeated cleaning and heating, which help your product meet standards of FDA silicone cord, LFGB silicone products, and BPA-free silicone cord.
This material is also easy to clean to meet your hygiene and long-term use needs in the food and beverage industry.
- Applications
Silicone cord is commonly used for food processing equipment, beverage dispensers, bakery ovens, and refrigerator door seals in the food industry.
You can choose transparent silicone cord or platinum-cured silicone cord to meet strict visible and hygiene requirements.
Medical and Pharmaceutical Field
- Advantages of Silicone Cord
Medical and pharmaceutical industries pay more attention to sterilization performance, biocompatibility, and material stability. Medical-grade silicone cord can be repeatedly sterilized and will not crack or lose flexibility. It has low extractables, good biocompatibility, and chemical inertness to help maintain a sterile and clean medical environment.
- Applications
Silicone cord can serve diagnostic devices, respiratory systems, pharmaceutical seals, and fluid transfer systems.
You need to choose platinum-cured silicone for high-purity applications to meet the strict medical and pharmaceutical standards.
Automotive and Aerospace Industry
- Advantages of Silicone Cord
Automotive and aerospace sectors always face temperature cycles, strong vibration, UV rays, and harsh weather. Silicone cord features weather resistance, UV resistance, ozone resistance, and vibration durability. It delivers stable sealing performance in engine compartments and extreme environments.
- Applications
Silicone cord is used for engine compartment sealing, lighting systems, battery pack sealing, cabin insulation, and aerospace enclosure seals.
You need to choose custom extruded silicone cord for complex automotive sealing structures to meet your OEM or ODM customization demands.
Electrical and Electronic Field
- Advantages of Silicone Cord
Electrical and electronic industries need to guard against moisture, dust, heat buildup, and insulation failure. Silicone cord offers reliable insulation, thermal stability, waterproof, and dustproof performance to keep your electrical equipment operating smoothly.
- Applications
Silicone cord can work for cable insulation, electrical enclosures, outdoor control boxes, and electronic component sealing.
Use colored silicone insulation cord for the wiring management. It will help users recognize and maintain the equipment.
Construction and General Industry
- Advantages of Silicone Cord
Outdoor construction often faces long-term aging and weather fluctuations. Silicone cord has good UV resistance, weather resistance, and anti-aging performance for long-term sealing on doors, windows, and some industrial equipment.
- Applications
Silicone cord is widely used for window sealing, door systems, HVAC units, and industrial machinery in construction and general industry.
Extreme Working Condition Application
- Advantages of Silicone Cord
Extreme working conditions include long-term high temperature, outdoor UV rays, chemical corrosion, marine environments, and heavy compression. These conditions set strict requirements for materials.
Silicone cord can maintain stable performance and long service life in these harsh environments. It also reduces maintenance costs and suits the tough sealing applications.
- Applications
High-performance silicone rubber cord often applies to furnaces, solar equipment, marine sealing, and chemical processing equipment.
Silicone cord has versatile and excellent properties. It can meet sealing and insulation needs of many industries, and withstand temperature changes, vibration, chemical corrosion, sterilization, and outdoor environments. Choosing durable and suitable silicone cord materials will help you reduce equipment failures and maintenance costs effectively.
How to Choose Suitable Silicone Cord for Different Industries?
Select Proper Shape, Color, and Size
- Shape
You should choose silicone cord shapes based on the sealing pressure and installation methods. For example, square silicone cord can work well on flat surfaces and keep stable under compression. Solid silicone cord will deliver strong pressure resistance for high-pressure sealing and long-term service life. Silicone sponge cord is lightweight, which is suitable for air and dust sealing.
- Color
Select silicone cord colors according to your industry standards, visibility requirements, equipment marking, and brand styles. For example, transparent silicone cord is ideal for the food and medical industries. Black silicone cord is often used for industrial and outdoor use. Red, blue, and other colored silicone cords can help mark wires and components.
- Size
Check sizes and tolerance when purchasing bulk silicone cord. Consistent tolerance will ensure good sealing performance and easy installation.
Comply with Industry Standards
Compliance certification of the industry standards is the key prerequisite for your material selection.
- Food Grade
Choose food-grade silicone cord with FDA, LFGB, and REACH certificates for food-related applications. The food industry attaches great importance to product compliance. These qualifications are necessary for your products to enter European and American markets.
- Medical Grade
Select platinum-cured silicone cord for medical use. This material offers better biocompatibility. You also need to check the clean production conditions to meet medical industry standards.
Choose Shore Hardness
Select silicone cord with proper Shore hardness for different sealing pressure to avoid poor sealing and loss of resilience.
Low Shore hardness can offer softer compression and better flexibility for light-pressure sealing applications. High Shore hardness will withstand heavy compression better.
Match Temperature Resistance Range
Temperature changes can influence service life and maintenance frequency of the silicone cord. You should confirm the continuous working temperature before selecting.
Standard silicone cord can work from -40℃ to 200℃ for most working conditions. You need to choose specially modified silicone cord for high-temperature environments. These high temperature silicone cords can withstand temperatures of 250℃ and higher, and reduce sealing failures.
FAQ
Does Silicone Cord Have Oil Resistance?
Regular silicone cord has limited resistance to some industrial oils. You need to check chemical compatibility for applications with fuel, lubricants, or strong chemicals and choose professional oil-resistant silicone rubber when needed.
Can Silicone Cord Replace EPDM?
Silicone cord can work well for high-temperature, food-grade, and medical-grade applications. EPDM and other rubber materials are more suitable for long-term contact with oils or the strong solvents.
You should select materials based on the temperature range, chemical exposure, and compliance requirements.
Why Is Platinum-Cured Silicone Cord Recommended for Medical and Food Industries?
Platinum-cured silicone cord always features low volatility, steady purity, and reliable long-term performance. It can withstand repeated high-temperature cleaning and sterilization. Platinum-cured silicone cord also has high hygiene standards.
This material will easily pass tests and certifications for the industries which demand high cleanliness, low odor, and strict hygiene requirements.
Can Silicone Cord Be Customized Into Special Profiles?
Yes. Custom extruded industrial silicone cords including D-shaped, U-shaped, and special hollow profiles are widely used in the industrial equipment.
You can provide drawings or samples at the development stage and confirm processing capacity and minimum order quantity to improve the production efficiency.
Why Is Red Silicone Cord Widely Used for Industrial Equipment?
Red silicone cord can stand out clearly on industrial and high-temperature equipment. It helps mark wires and sealing parts, and is easier for users to identify during maintenance inspections.
Red silicone cord is widely used for oven seals and heating equipment sealing systems.
Can Silicone Cord Be Used for Vacuum Equipment?
Silicone cord can suit most vacuum equipment. Vacuum environments demand high cleanliness, low gas emission, and stable sealing. Standard qualified silicone cord delivers good airtightness for regular vacuum use. It is recommended for you to choose high-purity solid silicone cord, since solid silicone cord is more suitable than silicone sponge cord for high vacuum environments. You also need to test vacuum compatibility in advance.
Final Thoughts
Industrial equipment has higher requirements on temperature stability, durability, and compliance. Custom silicone cord helps gain wider use. As a professional silicone extrusion manufacturer, legensilico can deliver consistent quality, custom profiles, and stable supply chains. If you are looking for a reliable silicone cord supplier, feel free to contact us.
