I. Core Characteristics of round silicone rod
1. Wide Temperature Range
Silicone's stable molecular structure allows for long-term use in temperatures ranging from -50°C to 250°C (some special formulations can reach 300°C). It maintains flexibility (resistance to brittle cracking) at low temperatures and resists softening or decomposition at high temperatures. This makes it suitable for use in extreme temperature environments.
2. Excellent Aging Resistance
It is resistant to ozone, UV rays, and weathering. It resists aging and cracking even after long-term exposure to outdoor environments or harsh environments (such as moisture, acid and alkali vapors), ensuring a long service life. Compared to ordinary rubber, silicone's aging resistance is several times better.
3. Excellent Electrical Insulation
Silicone has extremely high volume resistivity and low dielectric loss. It maintains stable insulation properties even in high-voltage and high-frequency environments, making it an ideal insulating material for the electrical and electronic fields.
4. Biocompatibility and safety
Medical-grade silicone is strictly purified and meets the biosafety standards of FDA, ISO 10993, etc. It is non-toxic and non-sensitizing, and can come into contact with human tissue without causing rejection.
5. Flexibility and resilience
Silicone rods have a wide hardness range (Shore A 10~80), and the degree of hardness can be adjusted according to needs. The elastic modulus is low, and it can quickly recover to its original shape after being deformed by external force. The tear resistance and wear resistance are better than ordinary rubber.
6. Chemical stability
Resistant to most inorganic acids, alkalis, salts and organic solvents (such as alcohols and ketones), but not resistant to strong polar solvents (such as concentrated sulfuric acid, concentrated sodium hydroxide solution) and aromatic solvents, which needs to be judged according to the specific formula.
7. Easy to process and customize
Rods of different diameters, lengths and surface treatments (can be made through molding, extrusion and other processes to meet diverse installation needs.
AHD also offer Silicone Sheets.
2. Typical applications of silicone rods
Based on the above characteristics, silicone rods play a key role in the fields of industry, medical treatment, electronics, daily life, etc.:
1. Industrial sealing and shock absorption
Seals:Used for sealing of pipeline interfaces and instruments and equipment, oil-resistant, aging-resistant, and prevent liquid/gas leakage.
Shock absorption and buffering: used as shock-absorbing pads or support parts for robotic arms and precision instruments to absorb vibration shock and protect equipment accuracy.
2. Electronic and electrical insulation protection
Insulation parts: used as transformer skeletons, coil fixing sleeves, and high-voltage terminal protection sleeves to isolate current and prevent short circuits.
Fixation and support: used as component positioning columns in circuit boards, or to fix electrodes in battery packs, replacing plastic or metal parts to avoid leakage risks.
3. Medical and health fields
Medical devices: dental impression rods, catheters, and respiratory mask seals, which are safe and non-irritating due to biocompatibility.
Rehabilitation aids: cushioning pads for orthopedic braces and shock-absorbing parts at the joints of prostheses to improve wearing comfort.
4. Food and daily necessities
Food contact parts: Food Grade Silicone can be anti-stick bars for baking molds, coffee machine seals, and baby pacifier accessories, which comply with FDA 21 CFR 177.2600 and can directly contact food.
Daily tools: rubber coating for handles of kitchen utensils and massage heads of beauty devices, which take into account both functionality and safety.
5. Special environmental protection
High temperature scenarios: As Thermal insulation silicone material it can be oven seals, industrial furnace observation window seals, replacing rubber or plastic that is not resistant to high temperatures.
Outdoor equipment: solar panel frame seals, car wiper rubber strips, UV aging resistance, and extended service life.
AHD also offers Silicone Foam Sheet and Silicone Foam Rod. Contact us for more advice.
